90676881 has 16 divisors (see below), whose sum is σ = 138969600. Its totient is φ = 58366224.

The previous prime is 90676867. The next prime is 90676907. The reversal of 90676881 is 18867609.

It is a happy number.

It is not a de Polignac number, because 90676881 - 2¹³ = 90668689 is a prime.

It is a super-2 number, since 2×90676881² = 16444593495776322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90676801) 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, 57121 + ... + 58686.

It is an arithmetic number, because the mean of its divisors is an integer number (8685600).

Almost surely, 2^90676881 is an apocalyptic number.

It is an amenable number.

90676881 is a deficient number, since it is larger than the sum of its proper divisors (48292719).

90676881 is a wasteful number, since it uses less digits than its factorization.

90676881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115845 (or 115839 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 90676881 is about 9522.4409160677. The cubic root of 90676881 is about 449.2611430872.

The spelling of 90676881 in words is "ninety million, six hundred seventy-six thousand, eight hundred eighty-one".