89951879 has 8 divisors (see below), whose sum is σ = 95573520. Its totient is φ = 84366976.

The previous prime is 89951867. The next prime is 89951891. The reversal of 89951879 is 97815998.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89951867) and next prime (89951891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89951879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89951839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4049 + ... + 14010.

It is an arithmetic number, because the mean of its divisors is an integer number (11946690).

Almost surely, 2^89951879 is an apocalyptic number.

89951879 is a deficient number, since it is larger than the sum of its proper divisors (5621641).

89951879 is a wasteful number, since it uses less digits than its factorization.

89951879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18369.

The product of its digits is 1632960, while the sum is 56.

The square root of 89951879 is about 9484.2964420140. The cubic root of 89951879 is about 448.0605901655.

The spelling of 89951879 in words is "eighty-nine million, nine hundred fifty-one thousand, eight hundred seventy-nine".