91548673 has 4 divisors (see below), whose sum is σ = 94501888. Its totient is φ = 88595460.

The previous prime is 91548661. The next prime is 91548703. The reversal of 91548673 is 37684519.

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 91548673 - 2¹³ = 91540481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91548623) 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, 1476561 + ... + 1476622.

It is an arithmetic number, because the mean of its divisors is an integer number (23625472).

Almost surely, 2^91548673 is an apocalyptic number.

It is an amenable number.

91548673 is a deficient number, since it is larger than the sum of its proper divisors (2953215).

91548673 is a wasteful number, since it uses less digits than its factorization.

91548673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953214.

The product of its digits is 181440, while the sum is 43.

The square root of 91548673 is about 9568.1070750698. The cubic root of 91548673 is about 450.6963260706.

The spelling of 91548673 in words is "ninety-one million, five hundred forty-eight thousand, six hundred seventy-three".