90995311 has 4 divisors (see below), whose sum is σ = 99267624. Its totient is φ = 82723000.

The previous prime is 90995309. The next prime is 90995357. The reversal of 90995311 is 11359909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90995311 - 2¹ = 90995309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90995111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4136140 + ... + 4136161.

It is an arithmetic number, because the mean of its divisors is an integer number (24816906).

Almost surely, 2^90995311 is an apocalyptic number.

90995311 is a deficient number, since it is larger than the sum of its proper divisors (8272313).

90995311 is a wasteful number, since it uses less digits than its factorization.

90995311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272312.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 90995311 is about 9539.1462406234. The cubic root of 90995311 is about 449.7864188097.

The spelling of 90995311 in words is "ninety million, nine hundred ninety-five thousand, three hundred eleven".