90422933 has 2 divisors, whose sum is σ = 90422934. Its totient is φ = 90422932.

The previous prime is 90422909. The next prime is 90422963. The reversal of 90422933 is 33922409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47087044 + 43335889 = 6862^2 + 6583^2 .

It is an emirp because it is prime and its reverse (33922409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90422933 - 2¹² = 90418837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90422933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90422963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45211466 + 45211467.

It is an arithmetic number, because the mean of its divisors is an integer number (45211467).

Almost surely, 2^90422933 is an apocalyptic number.

It is an amenable number.

90422933 is a deficient number, since it is larger than the sum of its proper divisors (1).

90422933 is an equidigital number, since it uses as much as digits as its factorization.

90422933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 90422933 is about 9509.0973809295. The cubic root of 90422933 is about 448.8413534684.

The spelling of 90422933 in words is "ninety million, four hundred twenty-two thousand, nine hundred thirty-three".