90648022 has 4 divisors (see below), whose sum is σ = 135972036. Its totient is φ = 45324010.

The previous prime is 90648017. The next prime is 90648023. The reversal of 90648022 is 22084609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22084609 = 41 ⋅538649.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90648023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22662004 + ... + 22662007.

It is an arithmetic number, because the mean of its divisors is an integer number (33993009).

Almost surely, 2^90648022 is an apocalyptic number.

90648022 is a deficient number, since it is larger than the sum of its proper divisors (45324014).

90648022 is a wasteful number, since it uses less digits than its factorization.

90648022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45324013.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 90648022 is about 9520.9254802251. The cubic root of 90648022 is about 449.2134771225.

The spelling of 90648022 in words is "ninety million, six hundred forty-eight thousand, twenty-two".