90022947 has 12 divisors (see below), whose sum is σ = 139627656. Its totient is φ = 51441600.

The previous prime is 90022937. The next prime is 90022957. The reversal of 90022947 is 74922009.

It is an interprime number because it is at equal distance from previous prime (90022937) and next prime (90022957).

It is not a de Polignac number, because 90022947 - 2⁶ = 90022883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90022937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306054 + ... + 306347.

It is an arithmetic number, because the mean of its divisors is an integer number (11635638).

Almost surely, 2^90022947 is an apocalyptic number.

90022947 is a deficient number, since it is larger than the sum of its proper divisors (49604709).

90022947 is a wasteful number, since it uses less digits than its factorization.

90022947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612418 (or 612411 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 90022947 is about 9488.0423165161. The cubic root of 90022947 is about 448.1785583802.

The spelling of 90022947 in words is "ninety million, twenty-two thousand, nine hundred forty-seven".