89668379 has 4 divisors (see below), whose sum is σ = 90133176. Its totient is φ = 89203584.

The previous prime is 89668367. The next prime is 89668393. The reversal of 89668379 is 97386698.

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

It is a cyclic number.

It is not a de Polignac number, because 89668379 - 2⁴ = 89668363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89668879) 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, 232109 + ... + 232494.

It is an arithmetic number, because the mean of its divisors is an integer number (22533294).

Almost surely, 2^89668379 is an apocalyptic number.

89668379 is a deficient number, since it is larger than the sum of its proper divisors (464797).

89668379 is a wasteful number, since it uses less digits than its factorization.

89668379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464796.

The product of its digits is 3919104, while the sum is 56.

The square root of 89668379 is about 9469.3388892784. The cubic root of 89668379 is about 447.5893794817.

The spelling of 89668379 in words is "eighty-nine million, six hundred sixty-eight thousand, three hundred seventy-nine".