7897494860 has 12 divisors (see below), whose sum is σ = 16584739248. Its totient is φ = 3158997936.

The previous prime is 7897494817. The next prime is 7897494937. The reversal of 7897494860 is 684947987.

It is a junction number, because it is equal to n+sod(n) for n = 7897494793 and 7897494802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197437352 + ... + 197437391.

It is an arithmetic number, because the mean of its divisors is an integer number (1382061604).

Almost surely, 2^7897494860 is an apocalyptic number.

It is an amenable number.

7897494860 is an abundant number, since it is smaller than the sum of its proper divisors (8687244388).

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

7897494860 is a wasteful number, since it uses less digits than its factorization.

7897494860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394874752 (or 394874750 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The square root of 7897494860 is about 88867.8505422518. The cubic root of 7897494860 is about 1991.4211593610.

The spelling of 7897494860 in words is "seven billion, eight hundred ninety-seven million, four hundred ninety-four thousand, eight hundred sixty".