90732086 has 16 divisors (see below), whose sum is σ = 137712960. Its totient is φ = 44831040.

The previous prime is 90732023. The next prime is 90732091. The reversal of 90732086 is 68023709.

It is a super-2 number, since 2×90732086² = 16464622859822792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73091 + ... + 74321.

It is an arithmetic number, because the mean of its divisors is an integer number (8607060).

Almost surely, 2^90732086 is an apocalyptic number.

90732086 is a deficient number, since it is larger than the sum of its proper divisors (46980874).

90732086 is a wasteful number, since it uses less digits than its factorization.

90732086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 90732086 is about 9525.3391540669. The cubic root of 90732086 is about 449.3522961636.

The spelling of 90732086 in words is "ninety million, seven hundred thirty-two thousand, eighty-six".