86870658 has 16 divisors (see below), whose sum is σ = 198561600. Its totient is φ = 24820176.

The previous prime is 86870653. The next prime is 86870713. The reversal of 86870658 is 85607868.

It is a happy number.

It is a super-2 number, since 2×86870658² = 15093022442705928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86870653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034133 + ... + 1034216.

It is an arithmetic number, because the mean of its divisors is an integer number (12410100).

Almost surely, 2^86870658 is an apocalyptic number.

86870658 is an abundant number, since it is smaller than the sum of its proper divisors (111690942).

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

86870658 is a wasteful number, since it uses less digits than its factorization.

86870658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068361.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 86870658 is about 9320.4430152220. The cubic root of 86870658 is about 442.8850668384.

The spelling of 86870658 in words is "eighty-six million, eight hundred seventy thousand, six hundred fifty-eight".