86711670 has 48 divisors (see below), whose sum is σ = 226738512. Its totient is φ = 22991040.

The previous prime is 86711659. The next prime is 86711689. The reversal of 86711670 is 7611768.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13629 + ... + 18951.

It is an arithmetic number, because the mean of its divisors is an integer number (4723719).

Almost surely, 2^86711670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86711670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113369256).

86711670 is an abundant number, since it is smaller than the sum of its proper divisors (140026842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86711670 is a wasteful number, since it uses less digits than its factorization.

86711670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 86711670 is about 9311.9101155456. The cubic root of 86711670 is about 442.6147169776.

The spelling of 86711670 in words is "eighty-six million, seven hundred eleven thousand, six hundred seventy".