89951 has 4 divisors (see below), whose sum is σ = 90552. Its totient is φ = 89352.

The previous prime is 89939. The next prime is 89959. The reversal of 89951 is 15998.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89951 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89951.

It is not an unprimeable number, because it can be changed into a prime (89959) 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, 140 + ... + 446.

It is an arithmetic number, because the mean of its divisors is an integer number (22638).

2⁸⁹⁹⁵¹ is an apocalyptic number.

89951 is a deficient number, since it is larger than the sum of its proper divisors (601).

89951 is a wasteful number, since it uses less digits than its factorization.

89951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 3240, while the sum is 32.

The square root of 89951 is about 299.9183222146. The cubic root of 89951 is about 44.8059130694.

The spelling of 89951 in words is "eighty-nine thousand, nine hundred fifty-one".