89691501 has 4 divisors (see below), whose sum is σ = 119588672. Its totient is φ = 59794332.

The previous prime is 89691479. The next prime is 89691521. The reversal of 89691501 is 10519698.

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 89691501 - 2⁹ = 89690989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89691501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89691521) 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, 14948581 + ... + 14948586.

It is an arithmetic number, because the mean of its divisors is an integer number (29897168).

Almost surely, 2^89691501 is an apocalyptic number.

It is an amenable number.

89691501 is a deficient number, since it is larger than the sum of its proper divisors (29897171).

89691501 is a wasteful number, since it uses less digits than its factorization.

89691501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897170.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 89691501 is about 9470.5596983494. The cubic root of 89691501 is about 447.6278481605.

The spelling of 89691501 in words is "eighty-nine million, six hundred ninety-one thousand, five hundred one".