86985706 has 16 divisors (see below), whose sum is σ = 133927200. Its totient is φ = 42357168.

The previous prime is 86985697. The next prime is 86985707. The reversal of 86985706 is 60758968.

It is a self number, because there is not a number n which added to its sum of digits gives 86985706.

It is not an unprimeable number, because it can be changed into a prime (86985707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9481 + ... + 16243.

It is an arithmetic number, because the mean of its divisors is an integer number (8370450).

Almost surely, 2^86985706 is an apocalyptic number.

86985706 is a deficient number, since it is larger than the sum of its proper divisors (46941494).

86985706 is a wasteful number, since it uses less digits than its factorization.

86985706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 86985706 is about 9326.6127827845. The cubic root of 86985706 is about 443.0804936392.

The spelling of 86985706 in words is "eighty-six million, nine hundred eighty-five thousand, seven hundred six".