86923980 has 216 divisors, whose sum is σ = 313128816. Its totient is φ = 19388160.

The previous prime is 86923973. The next prime is 86923981. The reversal of 86923980 is 8932968.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (86923981) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 282987 + ... + 283293.

Almost surely, 2^86923980 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 86923980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156564408).

86923980 is an abundant number, since it is smaller than the sum of its proper divisors (226204836).

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

86923980 is a wasteful number, since it uses less digits than its factorization.

86923980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 86923980 is about 9323.3030627562. The cubic root of 86923980 is about 442.9756639319.

The spelling of 86923980 in words is "eighty-six million, nine hundred twenty-three thousand, nine hundred eighty".