90071086 has 16 divisors (see below), whose sum is σ = 154533600. Its totient is φ = 38570400.

The previous prime is 90071081. The next prime is 90071087. The reversal of 90071086 is 68017009.

It is a super-2 number, since 2×90071086² = 16225601066438792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90071081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25636 + ... + 28936.

It is an arithmetic number, because the mean of its divisors is an integer number (9658350).

Almost surely, 2^90071086 is an apocalyptic number.

90071086 is a deficient number, since it is larger than the sum of its proper divisors (64462514).

90071086 is a wasteful number, since it uses less digits than its factorization.

90071086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 90071086 is about 9490.5788021595. The cubic root of 90071086 is about 448.2584306936.

The spelling of 90071086 in words is "ninety million, seventy-one thousand, eighty-six".