87397832938 has 16 divisors (see below), whose sum is σ = 141495568200. Its totient is φ = 40247617536.

The previous prime is 87397832909. The next prime is 87397832971. The reversal of 87397832938 is 83923879378.

It can be written as a sum of positive squares in 4 ways, for example, as 85449228489 + 1948604449 = 292317^2 + 44143^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731595 + ... + 3754942.

Almost surely, 2^87397832938 is an apocalyptic number.

87397832938 is a deficient number, since it is larger than the sum of its proper divisors (54097735262).

87397832938 is a wasteful number, since it uses less digits than its factorization.

87397832938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7487001.

The product of its digits is 109734912, while the sum is 67.

The spelling of 87397832938 in words is "eighty-seven billion, three hundred ninety-seven million, eight hundred thirty-two thousand, nine hundred thirty-eight".