90699311 has 2 divisors, whose sum is σ = 90699312. Its totient is φ = 90699310.

The previous prime is 90699251. The next prime is 90699319. The reversal of 90699311 is 11399609.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90699311 - 2¹⁰ = 90698287 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 (90699319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45349655 + 45349656.

It is an arithmetic number, because the mean of its divisors is an integer number (45349656).

Almost surely, 2^90699311 is an apocalyptic number.

90699311 is a deficient number, since it is larger than the sum of its proper divisors (1).

90699311 is an equidigital number, since it uses as much as digits as its factorization.

90699311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 90699311 is about 9523.6185874908. The cubic root of 90699311 is about 449.2981833874.

The spelling of 90699311 in words is "ninety million, six hundred ninety-nine thousand, three hundred eleven".