91852493 has 4 divisors (see below), whose sum is σ = 91897728. Its totient is φ = 91807260.

The previous prime is 91852489. The next prime is 91852499. The reversal of 91852493 is 39425819.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91852493 - 2² = 91852489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91852493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91852499) 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, 19421 + ... + 23682.

It is an arithmetic number, because the mean of its divisors is an integer number (22974432).

Almost surely, 2^91852493 is an apocalyptic number.

It is an amenable number.

91852493 is a deficient number, since it is larger than the sum of its proper divisors (45235).

91852493 is a wasteful number, since it uses less digits than its factorization.

91852493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45234.

The product of its digits is 77760, while the sum is 41.

The square root of 91852493 is about 9583.9706280852. The cubic root of 91852493 is about 451.1943466175.

The spelling of 91852493 in words is "ninety-one million, eight hundred fifty-two thousand, four hundred ninety-three".