900023291 has 2 divisors, whose sum is σ = 900023292. Its totient is φ = 900023290.

The previous prime is 900023237. The next prime is 900023297. The reversal of 900023291 is 192320009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900023291 - 2¹⁸ = 899761147 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 900023291.

It is not a weakly prime, because it can be changed into another prime (900023297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450011645 + 450011646.

It is an arithmetic number, because the mean of its divisors is an integer number (450011646).

Almost surely, 2^900023291 is an apocalyptic number.

900023291 is a deficient number, since it is larger than the sum of its proper divisors (1).

900023291 is an equidigital number, since it uses as much as digits as its factorization.

900023291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 900023291 is about 30000.3881808219. The cubic root of 900023291 is about 965.4977131313.

The spelling of 900023291 in words is "nine hundred million, twenty-three thousand, two hundred ninety-one".