90655633 has 8 divisors (see below), whose sum is σ = 93410856. Its totient is φ = 87926400.

The previous prime is 90655619. The next prime is 90655637. The reversal of 90655633 is 33655609.

It can be written as a sum of positive squares in 4 ways, for example, as 18948609 + 71707024 = 4353^2 + 8468^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 90655633 - 2⁵ = 90655601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90655592 and 90655601.

It is not an unprimeable number, because it can be changed into a prime (90655637) 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, 703 + ... + 13483.

It is an arithmetic number, because the mean of its divisors is an integer number (11676357).

Almost surely, 2^90655633 is an apocalyptic number.

It is an amenable number.

90655633 is a deficient number, since it is larger than the sum of its proper divisors (2755223).

90655633 is a wasteful number, since it uses less digits than its factorization.

90655633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995.

The product of its (nonzero) digits is 72900, while the sum is 37.

The square root of 90655633 is about 9521.3251703741. The cubic root of 90655633 is about 449.2260490758.

The spelling of 90655633 in words is "ninety million, six hundred fifty-five thousand, six hundred thirty-three".