845972992 has 20 divisors (see below), whose sum is σ = 1690294716. Its totient is φ = 422986240.

The previous prime is 845972971. The next prime is 845972999. The reversal of 845972992 is 299279548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845972999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825634 + ... + 826657.

Almost surely, 2^845972992 is an apocalyptic number.

It is an amenable number.

845972992 is a deficient number, since it is larger than the sum of its proper divisors (844321724).

845972992 is an equidigital number, since it uses as much as digits as its factorization.

845972992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652309 (or 1652293 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 845972992 is about 29085.6148637088. The cubic root of 845972992 is about 945.7699246945.

The spelling of 845972992 in words is "eight hundred forty-five million, nine hundred seventy-two thousand, nine hundred ninety-two".