90948653 has 2 divisors, whose sum is σ = 90948654. Its totient is φ = 90948652.

The previous prime is 90948617. The next prime is 90948667. The reversal of 90948653 is 35684909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 36808489 = 7358^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 90948653 - 2²⁶ = 23839789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90942653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45474326 + 45474327.

It is an arithmetic number, because the mean of its divisors is an integer number (45474327).

Almost surely, 2^90948653 is an apocalyptic number.

It is an amenable number.

90948653 is a deficient number, since it is larger than the sum of its proper divisors (1).

90948653 is an equidigital number, since it uses as much as digits as its factorization.

90948653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 90948653 is about 9536.7003203414. The cubic root of 90948653 is about 449.7095294169.

The spelling of 90948653 in words is "ninety million, nine hundred forty-eight thousand, six hundred fifty-three".