797401680 has 40 divisors (see below), whose sum is σ = 2471945952. Its totient is φ = 212640384.

The previous prime is 797401669. The next prime is 797401687. The reversal of 797401680 is 86104797.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797401687) 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, 1661014 + ... + 1661493.

Almost surely, 2^797401680 is an apocalyptic number.

It is an amenable number.

797401680 is an abundant number, since it is smaller than the sum of its proper divisors (1674544272).

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

797401680 is a wasteful number, since it uses less digits than its factorization.

797401680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322523 (or 3322517 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 797401680 is about 28238.3016486474. The cubic root of 797401680 is about 927.3116489202.

The spelling of 797401680 in words is "seven hundred ninety-seven million, four hundred one thousand, six hundred eighty".