797963440 has 40 divisors (see below), whose sum is σ = 1856733840. Its totient is φ = 318932736.

The previous prime is 797963417. The next prime is 797963447. The reversal of 797963440 is 44369797.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (797963447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123162 + ... + 129478.

It is an arithmetic number, because the mean of its divisors is an integer number (46418346).

Almost surely, 2^797963440 is an apocalyptic number.

It is an amenable number.

797963440 is an abundant number, since it is smaller than the sum of its proper divisors (1058770400).

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

797963440 is a wasteful number, since it uses less digits than its factorization.

797963440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909 (or 7903 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 797963440 is about 28248.2466712538. The cubic root of 797963440 is about 927.5293578132.

The spelling of 797963440 in words is "seven hundred ninety-seven million, nine hundred sixty-three thousand, four hundred forty".