91323041 has 4 divisors (see below), whose sum is σ = 95293632. Its totient is φ = 87352452.

The previous prime is 91323019. The next prime is 91323047. The reversal of 91323041 is 14032319.

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 91323041 - 2⁶ = 91322977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 3970567 = 91323041 / (9 + 1 + 3 + 2 + 3 + 0 + 4 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91322998 and 91323016.

It is not an unprimeable number, because it can be changed into a prime (91323047) 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, 1985261 + ... + 1985306.

It is an arithmetic number, because the mean of its divisors is an integer number (23823408).

Almost surely, 2^91323041 is an apocalyptic number.

It is an amenable number.

91323041 is a deficient number, since it is larger than the sum of its proper divisors (3970591).

91323041 is a wasteful number, since it uses less digits than its factorization.

91323041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970590.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 91323041 is about 9556.3089631928. The cubic root of 91323041 is about 450.3257575410.

The spelling of 91323041 in words is "ninety-one million, three hundred twenty-three thousand, forty-one".