90912911 has 2 divisors, whose sum is σ = 90912912. Its totient is φ = 90912910.

The previous prime is 90912881. The next prime is 90912917. The reversal of 90912911 is 11921909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90912911 - 2²⁶ = 23804047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90912917) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45456455 + 45456456.

It is an arithmetic number, because the mean of its divisors is an integer number (45456456).

Almost surely, 2^90912911 is an apocalyptic number.

90912911 is a deficient number, since it is larger than the sum of its proper divisors (1).

90912911 is an equidigital number, since it uses as much as digits as its factorization.

90912911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 90912911 is about 9534.8262176088. The cubic root of 90912911 is about 449.6506111023.

The spelling of 90912911 in words is "ninety million, nine hundred twelve thousand, nine hundred eleven".