86515738 has 8 divisors (see below), whose sum is σ = 130922388. Its totient is φ = 42874944.

The previous prime is 86515733. The next prime is 86515747. The reversal of 86515738 is 83751568.

It can be written as a sum of positive squares in 2 ways, for example, as 49098049 + 37417689 = 7007^2 + 6117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 86515694 and 86515703.

It is not an unprimeable number, because it can be changed into a prime (86515733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191181 + ... + 191632.

Almost surely, 2^86515738 is an apocalyptic number.

86515738 is a deficient number, since it is larger than the sum of its proper divisors (44406650).

86515738 is a wasteful number, since it uses less digits than its factorization.

86515738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382928.

The product of its digits is 201600, while the sum is 43.

The square root of 86515738 is about 9301.3836605099. The cubic root of 86515738 is about 442.2810910363.

The spelling of 86515738 in words is "eighty-six million, five hundred fifteen thousand, seven hundred thirty-eight".