90204953 has 2 divisors, whose sum is σ = 90204954. Its totient is φ = 90204952.

The previous prime is 90204943. The next prime is 90204967. The reversal of 90204953 is 35940209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87011584 + 3193369 = 9328^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 90204953 - 2¹⁴ = 90188569 is a prime.

It is not a weakly prime, because it can be changed into another prime (90204943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45102476 + 45102477.

It is an arithmetic number, because the mean of its divisors is an integer number (45102477).

Almost surely, 2^90204953 is an apocalyptic number.

It is an amenable number.

90204953 is a deficient number, since it is larger than the sum of its proper divisors (1).

90204953 is an equidigital number, since it uses as much as digits as its factorization.

90204953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 90204953 is about 9497.6288093397. The cubic root of 90204953 is about 448.4803935539.

The spelling of 90204953 in words is "ninety million, two hundred four thousand, nine hundred fifty-three".