91385701 has 4 divisors (see below), whose sum is σ = 99693504. Its totient is φ = 83077900.

The previous prime is 91385683. The next prime is 91385717. The reversal of 91385701 is 10758319.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 91385701 - 2²³ = 82997093 is a prime.

It is a super-2 number, since 2×91385701² = 16702692694522802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91385741) 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, 4153885 + ... + 4153906.

It is an arithmetic number, because the mean of its divisors is an integer number (24923376).

Almost surely, 2^91385701 is an apocalyptic number.

It is an amenable number.

91385701 is a deficient number, since it is larger than the sum of its proper divisors (8307803).

91385701 is a wasteful number, since it uses less digits than its factorization.

91385701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8307802.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 91385701 is about 9559.5868634581. The cubic root of 91385701 is about 450.4287288557.

The spelling of 91385701 in words is "ninety-one million, three hundred eighty-five thousand, seven hundred one".