86979950 has 12 divisors (see below), whose sum is σ = 161782800. Its totient is φ = 34791960.

The previous prime is 86979923. The next prime is 86979953. The reversal of 86979950 is 5997968.

It is a junction number, because it is equal to n+sod(n) for n = 86979892 and 86979901.

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 in 5 ways as a sum of consecutive naturals, for example, 869750 + ... + 869849.

It is an arithmetic number, because the mean of its divisors is an integer number (13481900).

Almost surely, 2^86979950 is an apocalyptic number.

86979950 is a deficient number, since it is larger than the sum of its proper divisors (74802850).

86979950 is a wasteful number, since it uses less digits than its factorization.

86979950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739611 (or 1739606 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 86979950 is about 9326.3041983414. The cubic root of 86979950 is about 443.0707202803.

The spelling of 86979950 in words is "eighty-six million, nine hundred seventy-nine thousand, nine hundred fifty".