90083085687 has 16 divisors (see below), whose sum is σ = 152521626880. Its totient is φ = 51476048856.

The previous prime is 90083085661. The next prime is 90083085707. The reversal of 90083085687 is 78658038009.

It is a happy number.

It is not a de Polignac number, because 90083085687 - 2⁸ = 90083085431 is a prime.

It is a super-2 number, since 2×90083085687² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90083085637) 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, 238314853 + ... + 238315230.

It is an arithmetic number, because the mean of its divisors is an integer number (9532601680).

Almost surely, 2^90083085687 is an apocalyptic number.

90083085687 is a deficient number, since it is larger than the sum of its proper divisors (62438541193).

90083085687 is a wasteful number, since it uses less digits than its factorization.

90083085687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476630099 (or 476630093 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 90083085687 in words is "ninety billion, eighty-three million, eighty-five thousand, six hundred eighty-seven".