90751617 has 32 divisors (see below), whose sum is σ = 149184000. Its totient is φ = 54058320.

The previous prime is 90751613. The next prime is 90751621. The reversal of 90751617 is 71615709.

It is an interprime number because it is at equal distance from previous prime (90751613) and next prime (90751621).

It is not a de Polignac number, because 90751617 - 2² = 90751613 is a prime.

It is a super-2 number, since 2×90751617² = 16471711976229378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90751613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14934 + ... + 20112.

It is an arithmetic number, because the mean of its divisors is an integer number (4662000).

Almost surely, 2^90751617 is an apocalyptic number.

It is an amenable number.

90751617 is a deficient number, since it is larger than the sum of its proper divisors (58432383).

90751617 is a wasteful number, since it uses less digits than its factorization.

90751617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258 (or 5252 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 90751617 is about 9526.3643117403. The cubic root of 90751617 is about 449.3845363939.

The spelling of 90751617 in words is "ninety million, seven hundred fifty-one thousand, six hundred seventeen".