90773911 has 4 divisors (see below), whose sum is σ = 91013800. Its totient is φ = 90534024.

The previous prime is 90773909. The next prime is 90773941. The reversal of 90773911 is 11937709.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11937709 = 7 ⋅1705387.

It is a cyclic number.

It is not a de Polignac number, because 90773911 - 2¹ = 90773909 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 (90773941) 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, 119376 + ... + 120133.

It is an arithmetic number, because the mean of its divisors is an integer number (22753450).

Almost surely, 2^90773911 is an apocalyptic number.

90773911 is a deficient number, since it is larger than the sum of its proper divisors (239889).

90773911 is a wasteful number, since it uses less digits than its factorization.

90773911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239888.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 90773911 is about 9527.5343609981. The cubic root of 90773911 is about 449.4213319130.

The spelling of 90773911 in words is "ninety million, seven hundred seventy-three thousand, nine hundred eleven".