90940111 has 4 divisors (see below), whose sum is σ = 91962000. Its totient is φ = 89918224.

The previous prime is 90940093. The next prime is 90940121. The reversal of 90940111 is 11104909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11104909 = 557 ⋅19937.

It is a cyclic number.

It is not a de Polignac number, because 90940111 - 2⁵ = 90940079 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 (90940121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510811 + ... + 510988.

It is an arithmetic number, because the mean of its divisors is an integer number (22990500).

Almost surely, 2^90940111 is an apocalyptic number.

90940111 is a deficient number, since it is larger than the sum of its proper divisors (1021889).

90940111 is a wasteful number, since it uses less digits than its factorization.

90940111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021888.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 90940111 is about 9536.2524610037. The cubic root of 90940111 is about 449.6954499008.

The spelling of 90940111 in words is "ninety million, nine hundred forty thousand, one hundred eleven".