90940311 has 48 divisors (see below), whose sum is σ = 164706048. Its totient is φ = 46972800.

The previous prime is 90940307. The next prime is 90940357. The reversal of 90940311 is 11304909.

It is not a de Polignac number, because 90940311 - 2² = 90940307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90940301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194500 + ... + 194966.

It is an arithmetic number, because the mean of its divisors is an integer number (3431376).

Almost surely, 2^90940311 is an apocalyptic number.

90940311 is a deficient number, since it is larger than the sum of its proper divisors (73765737).

90940311 is a wasteful number, since it uses less digits than its factorization.

90940311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 90940311 is about 9536.2629472975. The cubic root of 90940311 is about 449.6957795647.

The spelling of 90940311 in words is "ninety million, nine hundred forty thousand, three hundred eleven".