782648249 has 8 divisors (see below), whose sum is σ = 788223360. Its totient is φ = 777082896.

The previous prime is 782648233. The next prime is 782648263. The reversal of 782648249 is 942846287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 782648249 - 2⁴ = 782648233 is a prime.

It is a super-2 number, since 2×782648249² = 1225076563325532002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 782648197 and 782648206.

It is not an unprimeable number, because it can be changed into a prime (782348249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240767 + ... + 243995.

It is an arithmetic number, because the mean of its divisors is an integer number (98527920).

Almost surely, 2^782648249 is an apocalyptic number.

It is an amenable number.

782648249 is a deficient number, since it is larger than the sum of its proper divisors (5575111).

782648249 is a wasteful number, since it uses less digits than its factorization.

782648249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879.

The product of its digits is 1548288, while the sum is 50.

The square root of 782648249 is about 27975.8511756122. The cubic root of 782648249 is about 921.5570078099.

The spelling of 782648249 in words is "seven hundred eighty-two million, six hundred forty-eight thousand, two hundred forty-nine".