67489349 has 4 divisors (see below), whose sum is σ = 71041440. Its totient is φ = 63937260.

The previous prime is 67489343. The next prime is 67489361. The reversal of 67489349 is 94398476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67489349 - 2²⁴ = 50712133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67489297 and 67489306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67489343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776017 + ... + 1776054.

It is an arithmetic number, because the mean of its divisors is an integer number (17760360).

Almost surely, 2^67489349 is an apocalyptic number.

It is an amenable number.

67489349 is a deficient number, since it is larger than the sum of its proper divisors (3552091).

67489349 is a wasteful number, since it uses less digits than its factorization.

67489349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552090.

The product of its digits is 1306368, while the sum is 50.

The square root of 67489349 is about 8215.1901377874. The cubic root of 67489349 is about 407.1412256131.

The spelling of 67489349 in words is "sixty-seven million, four hundred eighty-nine thousand, three hundred forty-nine".