7897697850 has 48 divisors (see below), whose sum is σ = 22384335168. Its totient is φ = 1805187840.

The previous prime is 7897697783. The next prime is 7897697869. The reversal of 7897697850 is 587967987.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3759759 + ... + 3761858.

It is an arithmetic number, because the mean of its divisors is an integer number (466340316).

Almost surely, 2^7897697850 is an apocalyptic number.

7897697850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7897697850 is an abundant number, since it is smaller than the sum of its proper divisors (14486637318).

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

7897697850 is a wasteful number, since it uses less digits than its factorization.

7897697850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521639 (or 7521634 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 66.

The square root of 7897697850 is about 88868.9926239743. The cubic root of 7897697850 is about 1991.4382211055.

The spelling of 7897697850 in words is "seven billion, eight hundred ninety-seven million, six hundred ninety-seven thousand, eight hundred fifty".