91700401 has 4 divisors (see below), whose sum is σ = 98754292. Its totient is φ = 84646512.

The previous prime is 91700369. The next prime is 91700417. The reversal of 91700401 is 10400719.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13395600 + 78304801 = 3660^2 + 8849^2 .

It is a cyclic number.

It is not a de Polignac number, because 91700401 - 2⁵ = 91700369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91700461) 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, 3526926 + ... + 3526951.

It is an arithmetic number, because the mean of its divisors is an integer number (24688573).

Almost surely, 2^91700401 is an apocalyptic number.

It is an amenable number.

91700401 is a deficient number, since it is larger than the sum of its proper divisors (7053891).

91700401 is a wasteful number, since it uses less digits than its factorization.

91700401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7053890.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 91700401 is about 9576.0326336119. The cubic root of 91700401 is about 450.9451755128.

The spelling of 91700401 in words is "ninety-one million, seven hundred thousand, four hundred one".