86207976 has 80 divisors (see below), whose sum is σ = 243173700. Its totient is φ = 28532736.

The previous prime is 86207971. The next prime is 86207977. The reversal of 86207976 is 67970268.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83283876 + 2924100 = 9126^2 + 1710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86207971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 111720 + ... + 112488.

Almost surely, 2^86207976 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 86207976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121586850).

86207976 is an abundant number, since it is smaller than the sum of its proper divisors (156965724).

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

86207976 is a wasteful number, since it uses less digits than its factorization.

86207976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 86207976 is about 9284.8250387393. The cubic root of 86207976 is about 441.7560265060.

The spelling of 86207976 in words is "eighty-six million, two hundred seven thousand, nine hundred seventy-six".