797925870 has 64 divisors (see below), whose sum is σ = 2431779840. Its totient is φ = 182382624.

The previous prime is 797925809. The next prime is 797925901. The reversal of 797925870 is 78529797.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209202 + ... + 212981.

It is an arithmetic number, because the mean of its divisors is an integer number (37996560).

Almost surely, 2^797925870 is an apocalyptic number.

797925870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

797925870 is an abundant number, since it is smaller than the sum of its proper divisors (1633853970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797925870 is a wasteful number, since it uses less digits than its factorization.

797925870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422206 (or 422200 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The square root of 797925870 is about 28247.5816664011. The cubic root of 797925870 is about 927.5148008284.

The spelling of 797925870 in words is "seven hundred ninety-seven million, nine hundred twenty-five thousand, eight hundred seventy".