86434236 has 72 divisors (see below), whose sum is σ = 260690640. Its totient is φ = 24693984.

The previous prime is 86434223. The next prime is 86434237. The reversal of 86434236 is 63243468.

It is a happy number.

86434236 is a `hidden beast` number, since 8 + 643 + 4 + 2 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 86434236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86434237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2875 + ... + 13458.

Almost surely, 2^86434236 is an apocalyptic number.

It is an amenable number.

86434236 is an abundant number, since it is smaller than the sum of its proper divisors (174256404).

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

86434236 is a wasteful number, since it uses less digits than its factorization.

86434236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16360 (or 16345 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 86434236 is about 9297.0014520812. The cubic root of 86434236 is about 442.1421640252.

The spelling of 86434236 in words is "eighty-six million, four hundred thirty-four thousand, two hundred thirty-six".