86979952 has 10 divisors (see below), whose sum is σ = 168523688. Its totient is φ = 43489968.

The previous prime is 86979923. The next prime is 86979953. The reversal of 86979952 is 25997968.

It is a junction number, because it is equal to n+sod(n) for n = 86979893 and 86979902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86979953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2718108 + ... + 2718139.

Almost surely, 2^86979952 is an apocalyptic number.

It is an amenable number.

86979952 is a deficient number, since it is larger than the sum of its proper divisors (81543736).

86979952 is a wasteful number, since it uses less digits than its factorization.

86979952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436255 (or 5436249 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The square root of 86979952 is about 9326.3043055650. The cubic root of 86979952 is about 443.0707236762.

The spelling of 86979952 in words is "eighty-six million, nine hundred seventy-nine thousand, nine hundred fifty-two".