86509386 has 12 divisors (see below), whose sum is σ = 187437042. Its totient is φ = 28836456.

The previous prime is 86509373. The next prime is 86509459. The reversal of 86509386 is 68390568.

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 19580625 = 8181^2 + 4425^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2403021 + ... + 2403056.

Almost surely, 2^86509386 is an apocalyptic number.

86509386 is an abundant number, since it is smaller than the sum of its proper divisors (100927656).

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

86509386 is a wasteful number, since it uses less digits than its factorization.

86509386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806085 (or 4806082 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 86509386 is about 9301.0421996677. The cubic root of 86509386 is about 442.2702666541.

The spelling of 86509386 in words is "eighty-six million, five hundred nine thousand, three hundred eighty-six".