86735990 has 32 divisors (see below), whose sum is σ = 177728256. Its totient is φ = 30168160.

The previous prime is 86735977. The next prime is 86735993. The reversal of 86735990 is 9953768.

It is a super-2 number, since 2×86735990² = 15046263922560200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86735993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14612 + ... + 19671.

It is an arithmetic number, because the mean of its divisors is an integer number (5554008).

Almost surely, 2^86735990 is an apocalyptic number.

86735990 is an abundant number, since it is smaller than the sum of its proper divisors (90992266).

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

86735990 is a wasteful number, since it uses less digits than its factorization.

86735990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34324.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 86735990 is about 9313.2158785245. The cubic root of 86735990 is about 442.6560931219.

The spelling of 86735990 in words is "eighty-six million, seven hundred thirty-five thousand, nine hundred ninety".