91419641 has 8 divisors (see below), whose sum is σ = 95969664. Its totient is φ = 86917600.

The previous prime is 91419593. The next prime is 91419649. The reversal of 91419641 is 14691419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91419641 - 2⁶ = 91419577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91419649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8060 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (11996208).

Almost surely, 2^91419641 is an apocalyptic number.

It is an amenable number.

91419641 is a deficient number, since it is larger than the sum of its proper divisors (4550023).

91419641 is a wasteful number, since it uses less digits than its factorization.

91419641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23991.

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

The square root of 91419641 is about 9561.3618799834. The cubic root of 91419641 is about 450.4844839637.

The spelling of 91419641 in words is "ninety-one million, four hundred nineteen thousand, six hundred forty-one".