967645449 has 9 divisors (see below), whose sum is σ = 1397844903. Its totient is φ = 645034752.

The previous prime is 967645421. The next prime is 967645453. The reversal of 967645449 is 944546769.

It is a happy number.

The square root of 967645449 is 31107.

It is a perfect power (a square), and thus also a powerful number.

967645449 is a `hidden beast` number, since 96 + 7 + 6 + 4 + 544 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 914457600 = 7293^2 + 30240^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-967645449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 967645395 and 967645404.

It is not an unprimeable number, because it can be changed into a prime (967645499) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 88137 + ... + 98505.

Almost surely, 2^967645449 is an apocalyptic number.

967645449 is the 31107-th square number.

967645449 is the 15554-th centered octagonal number.

It is an amenable number.

967645449 is a deficient number, since it is larger than the sum of its proper divisors (430199454).

967645449 is an frugal number, since it uses more digits than its factorization.

967645449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20744 (or 10372 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The cubic root of 967645449 is about 989.0966997795.

It can be divided in two parts, 967 and 645449, that added together give a square (646416 = 804²).

The spelling of 967645449 in words is "nine hundred sixty-seven million, six hundred forty-five thousand, four hundred forty-nine".