90650633 has 4 divisors (see below), whose sum is σ = 90802068. Its totient is φ = 90499200.

The previous prime is 90650621. The next prime is 90650663. The reversal of 90650633 is 33605609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85137529 + 5513104 = 9227^2 + 2348^2 .

It is a cyclic number.

It is not a de Polignac number, because 90650633 - 2⁸ = 90650377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90650633.

It is not an unprimeable number, because it can be changed into a prime (90650663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74816 + ... + 76017.

It is an arithmetic number, because the mean of its divisors is an integer number (22700517).

Almost surely, 2^90650633 is an apocalyptic number.

It is an amenable number.

90650633 is a deficient number, since it is larger than the sum of its proper divisors (151435).

90650633 is a wasteful number, since it uses less digits than its factorization.

90650633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151434.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 90650633 is about 9521.0625982608. The cubic root of 90650633 is about 449.2177900871.

The spelling of 90650633 in words is "ninety million, six hundred fifty thousand, six hundred thirty-three".