91942733 has 4 divisors (see below), whose sum is σ = 92203548. Its totient is φ = 91681920.

The previous prime is 91942727. The next prime is 91942759. The reversal of 91942733 is 33724919.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72556324 + 19386409 = 8518^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 91942733 - 2¹⁰ = 91941709 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 (91942703) 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, 129878 + ... + 130583.

It is an arithmetic number, because the mean of its divisors is an integer number (23050887).

Almost surely, 2^91942733 is an apocalyptic number.

It is an amenable number.

91942733 is a deficient number, since it is larger than the sum of its proper divisors (260815).

91942733 is a wasteful number, since it uses less digits than its factorization.

91942733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260814.

The product of its digits is 40824, while the sum is 38.

The square root of 91942733 is about 9588.6773331883. The cubic root of 91942733 is about 451.3420560957.

The spelling of 91942733 in words is "ninety-one million, nine hundred forty-two thousand, seven hundred thirty-three".