86512004 has 6 divisors (see below), whose sum is σ = 151396014. Its totient is φ = 43256000.

The previous prime is 86512003. The next prime is 86512061. The reversal of 86512004 is 40021568.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 31899904 = 7390^2 + 5648^2 .

It is not an unprimeable number, because it can be changed into a prime (86512003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10813997 + ... + 10814004.

It is an arithmetic number, because the mean of its divisors is an integer number (25232669).

Almost surely, 2^86512004 is an apocalyptic number.

It is an amenable number.

86512004 is a deficient number, since it is larger than the sum of its proper divisors (64884010).

86512004 is a wasteful number, since it uses less digits than its factorization.

86512004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21628005 (or 21628003 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 86512004 is about 9301.1829355195. The cubic root of 86512004 is about 442.2747280269.

The spelling of 86512004 in words is "eighty-six million, five hundred twelve thousand, four".