86706512 has 10 divisors (see below), whose sum is σ = 167993898. Its totient is φ = 43353248.

The previous prime is 86706469. The next prime is 86706517. The reversal of 86706512 is 21560768.

It can be written as a sum of positive squares in only one way, i.e., 49056016 + 37650496 = 7004^2 + 6136^2 .

It is a super-2 number, since 2×86706512² = 15036038446412288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86706517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2709563 + ... + 2709594.

Almost surely, 2^86706512 is an apocalyptic number.

It is an amenable number.

86706512 is a deficient number, since it is larger than the sum of its proper divisors (81287386).

86706512 is a wasteful number, since it uses less digits than its factorization.

86706512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419165 (or 5419159 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 86706512 is about 9311.6331542861. The cubic root of 86706512 is about 442.6059405658.

The spelling of 86706512 in words is "eighty-six million, seven hundred six thousand, five hundred twelve".