86643298 has 16 divisors (see below), whose sum is σ = 148651200. Its totient is φ = 37102896.

The previous prime is 86643283. The next prime is 86643299. The reversal of 86643298 is 89234668.

It is a happy number.

It is a super-2 number, since 2×86643298² = 15014122176633608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86643299) 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, 30753 + ... + 33451.

It is an arithmetic number, because the mean of its divisors is an integer number (9290700).

Almost surely, 2^86643298 is an apocalyptic number.

86643298 is a deficient number, since it is larger than the sum of its proper divisors (62007902).

86643298 is a wasteful number, since it uses less digits than its factorization.

86643298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its digits is 497664, while the sum is 46.

The square root of 86643298 is about 9308.2381791615. The cubic root of 86643298 is about 442.4983527448.

The spelling of 86643298 in words is "eighty-six million, six hundred forty-three thousand, two hundred ninety-eight".