91673752 has 8 divisors (see below), whose sum is σ = 171888300. Its totient is φ = 45836872.

The previous prime is 91673737. The next prime is 91673779. The reversal of 91673752 is 25737619.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5729602 + ... + 5729617.

Almost surely, 2^91673752 is an apocalyptic number.

It is an amenable number.

91673752 is a deficient number, since it is larger than the sum of its proper divisors (80214548).

91673752 is a wasteful number, since it uses less digits than its factorization.

91673752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11459225 (or 11459221 counting only the distinct ones).

The product of its digits is 79380, while the sum is 40.

The square root of 91673752 is about 9574.6410898790. The cubic root of 91673752 is about 450.9014883091.

It can be divided in two parts, 9 and 1673752, that added together give a palindrome (1673761).

The spelling of 91673752 in words is "ninety-one million, six hundred seventy-three thousand, seven hundred fifty-two".