91814601 has 4 divisors (see below), whose sum is σ = 122419472. Its totient is φ = 61209732.

The previous prime is 91814599. The next prime is 91814617. The reversal of 91814601 is 10641819.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 91814601 - 2¹ = 91814599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91814651) 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, 15302431 + ... + 15302436.

It is an arithmetic number, because the mean of its divisors is an integer number (30604868).

Almost surely, 2^91814601 is an apocalyptic number.

It is an amenable number.

91814601 is a deficient number, since it is larger than the sum of its proper divisors (30604871).

91814601 is a wasteful number, since it uses less digits than its factorization.

91814601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30604870.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 91814601 is about 9581.9935817136. The cubic root of 91814601 is about 451.1322942001.

The spelling of 91814601 in words is "ninety-one million, eight hundred fourteen thousand, six hundred one".