797919090 has 32 divisors (see below), whose sum is σ = 1934755200. Its totient is φ = 210584064.

The previous prime is 797919053. The next prime is 797919107. The reversal of 797919090 is 90919797.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134190 + ... + 140009.

It is an arithmetic number, because the mean of its divisors is an integer number (60461100).

Almost surely, 2^797919090 is an apocalyptic number.

797919090 is an abundant number, since it is smaller than the sum of its proper divisors (1136836110).

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

797919090 is a wasteful number, since it uses less digits than its factorization.

797919090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274306.

The product of its (nonzero) digits is 321489, while the sum is 51.

The square root of 797919090 is about 28247.4616558727. The cubic root of 797919090 is about 927.5121737806.

The spelling of 797919090 in words is "seven hundred ninety-seven million, nine hundred nineteen thousand, ninety".