91364671 has 4 divisors (see below), whose sum is σ = 95337072. Its totient is φ = 87392272.

The previous prime is 91364653. The next prime is 91364677. The reversal of 91364671 is 17646319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17646319 = 463 ⋅38113.

It is not a de Polignac number, because 91364671 - 2⁵ = 91364639 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 91364671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91364677) 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, 1986166 + ... + 1986211.

It is an arithmetic number, because the mean of its divisors is an integer number (23834268).

Almost surely, 2^91364671 is an apocalyptic number.

91364671 is a deficient number, since it is larger than the sum of its proper divisors (3972401).

91364671 is a wasteful number, since it uses less digits than its factorization.

91364671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972400.

The product of its digits is 27216, while the sum is 37.

The square root of 91364671 is about 9558.4868572384. The cubic root of 91364671 is about 450.3941747888.

The spelling of 91364671 in words is "ninety-one million, three hundred sixty-four thousand, six hundred seventy-one".