2497904639 has 8 divisors (see below), whose sum is σ = 2730158208. Its totient is φ = 2275130880.

The previous prime is 2497904557. The next prime is 2497904641. The reversal of 2497904639 is 9364097942.

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 2497904639 - 2²⁸ = 2229469183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497904699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369402 + ... + 2370455.

It is an arithmetic number, because the mean of its divisors is an integer number (341269776).

Almost surely, 2^2497904639 is an apocalyptic number.

2497904639 is a deficient number, since it is larger than the sum of its proper divisors (232253569).

2497904639 is a wasteful number, since it uses less digits than its factorization.

2497904639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739905.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 2497904639 is about 49979.0419976214. The cubic root of 2497904639 is about 1356.8295233251.

The spelling of 2497904639 in words is "two billion, four hundred ninety-seven million, nine hundred four thousand, six hundred thirty-nine".