91914461 has 4 divisors (see below), whose sum is σ = 97321212. Its totient is φ = 86507712.

The previous prime is 91914451. The next prime is 91914479. The reversal of 91914461 is 16441919.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16441919 = 13 ⋅1264763.

It can be written as a sum of positive squares in 2 ways, for example, as 84456100 + 7458361 = 9190^2 + 2731^2 .

It is a cyclic number.

It is not a de Polignac number, because 91914461 - 2²⁶ = 24805597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91914451) 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, 2703350 + ... + 2703383.

It is an arithmetic number, because the mean of its divisors is an integer number (24330303).

Almost surely, 2^91914461 is an apocalyptic number.

It is an amenable number.

91914461 is a deficient number, since it is larger than the sum of its proper divisors (5406751).

91914461 is a wasteful number, since it uses less digits than its factorization.

91914461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406750.

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

The square root of 91914461 is about 9587.2029810576. The cubic root of 91914461 is about 451.2957894312.

The spelling of 91914461 in words is "ninety-one million, nine hundred fourteen thousand, four hundred sixty-one".