86813236 has 12 divisors (see below), whose sum is σ = 155628900. Its totient is φ = 42347840.

The previous prime is 86813227. The next prime is 86813239. The reversal of 86813236 is 63231868.

It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 84272400 = 1594^2 + 9180^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86813195 and 86813204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86813239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264511 + ... + 264838.

It is an arithmetic number, because the mean of its divisors is an integer number (12969075).

Almost surely, 2^86813236 is an apocalyptic number.

It is an amenable number.

86813236 is a deficient number, since it is larger than the sum of its proper divisors (68815664).

86813236 is a wasteful number, since it uses less digits than its factorization.

86813236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529394 (or 529392 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 86813236 is about 9317.3620730333. The cubic root of 86813236 is about 442.7874621451.

The spelling of 86813236 in words is "eighty-six million, eight hundred thirteen thousand, two hundred thirty-six".