91441916 has 6 divisors (see below), whose sum is σ = 160023360. Its totient is φ = 45720956.

The previous prime is 91441913. The next prime is 91441919. The reversal of 91441916 is 61914419.

It is an interprime number because it is at equal distance from previous prime (91441913) and next prime (91441919).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91441913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11430236 + ... + 11430243.

It is an arithmetic number, because the mean of its divisors is an integer number (26670560).

Almost surely, 2^91441916 is an apocalyptic number.

It is an amenable number.

91441916 is a deficient number, since it is larger than the sum of its proper divisors (68581444).

91441916 is a wasteful number, since it uses less digits than its factorization.

91441916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22860483 (or 22860481 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 91441916 is about 9562.5266535576. The cubic root of 91441916 is about 450.5210688335.

The spelling of 91441916 in words is "ninety-one million, four hundred forty-one thousand, nine hundred sixteen".