89379861 has 4 divisors (see below), whose sum is σ = 119173152. Its totient is φ = 59586572.

The previous prime is 89379847. The next prime is 89379881. The reversal of 89379861 is 16897398.

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 89379861 - 2⁹ = 89379349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89379881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14896641 + ... + 14896646.

It is an arithmetic number, because the mean of its divisors is an integer number (29793288).

Almost surely, 2^89379861 is an apocalyptic number.

It is an amenable number.

89379861 is a deficient number, since it is larger than the sum of its proper divisors (29793291).

89379861 is a wasteful number, since it uses less digits than its factorization.

89379861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29793290.

The product of its digits is 653184, while the sum is 51.

The square root of 89379861 is about 9454.0922885278. The cubic root of 89379861 is about 447.1088074487.

The spelling of 89379861 in words is "eighty-nine million, three hundred seventy-nine thousand, eight hundred sixty-one".