86977692 has 96 divisors (see below), whose sum is σ = 236328960. Its totient is φ = 27630720.

The previous prime is 86977679. The next prime is 86977703. The reversal of 86977692 is 29677968.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2286144) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277728 + ... + 278040.

It is an arithmetic number, because the mean of its divisors is an integer number (2461760).

Almost surely, 2^86977692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86977692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118164480).

86977692 is an abundant number, since it is smaller than the sum of its proper divisors (149351268).

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

86977692 is a wasteful number, since it uses less digits than its factorization.

86977692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 432 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 86977692 is about 9326.1831421005. The cubic root of 86977692 is about 443.0668862076.

The spelling of 86977692 in words is "eighty-six million, nine hundred seventy-seven thousand, six hundred ninety-two".