90923501 has 2 divisors, whose sum is σ = 90923502. Its totient is φ = 90923500.

The previous prime is 90923479. The next prime is 90923507. The reversal of 90923501 is 10532909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 4452100 = 9299^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 90923501 - 2²² = 86729197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90923507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45461750 + 45461751.

It is an arithmetic number, because the mean of its divisors is an integer number (45461751).

Almost surely, 2^90923501 is an apocalyptic number.

It is an amenable number.

90923501 is a deficient number, since it is larger than the sum of its proper divisors (1).

90923501 is an equidigital number, since it uses as much as digits as its factorization.

90923501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 90923501 is about 9535.3815340552. The cubic root of 90923501 is about 449.6680696240.

The spelling of 90923501 in words is "ninety million, nine hundred twenty-three thousand, five hundred one".