86617812 has 24 divisors (see below), whose sum is σ = 204668800. Its totient is φ = 28506816.

The previous prime is 86617807. The next prime is 86617819. The reversal of 86617812 is 21871668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86617819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44737 + ... + 46632.

Almost surely, 2^86617812 is an apocalyptic number.

It is an amenable number.

86617812 is an abundant number, since it is smaller than the sum of its proper divisors (118050988).

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

86617812 is a wasteful number, since it uses less digits than its factorization.

86617812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91455 (or 91453 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 86617812 is about 9306.8690761179. The cubic root of 86617812 is about 442.4549617412.

The spelling of 86617812 in words is "eighty-six million, six hundred seventeen thousand, eight hundred twelve".