90695591 has 8 divisors (see below), whose sum is σ = 103720320. Its totient is φ = 77687928.

The previous prime is 90695581. The next prime is 90695597. The reversal of 90695591 is 19559609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90695591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90695597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10580 + ... + 17126.

It is an arithmetic number, because the mean of its divisors is an integer number (12965040).

Almost surely, 2^90695591 is an apocalyptic number.

90695591 is a deficient number, since it is larger than the sum of its proper divisors (13024729).

90695591 is a wasteful number, since it uses less digits than its factorization.

90695591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 90695591 is about 9523.4232815727. The cubic root of 90695591 is about 449.2920407016.

The spelling of 90695591 in words is "ninety million, six hundred ninety-five thousand, five hundred ninety-one".