89130939 has 4 divisors (see below), whose sum is σ = 118841256. Its totient is φ = 59420624.

The previous prime is 89130931. The next prime is 89130989. The reversal of 89130939 is 93903198.

It is a happy number.

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 89130939 - 2³ = 89130931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89130939.

It is not an unprimeable number, because it can be changed into a prime (89130931) 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, 14855154 + ... + 14855159.

It is an arithmetic number, because the mean of its divisors is an integer number (29710314).

Almost surely, 2^89130939 is an apocalyptic number.

89130939 is a deficient number, since it is larger than the sum of its proper divisors (29710317).

89130939 is a wasteful number, since it uses less digits than its factorization.

89130939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29710316.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 89130939 is about 9440.9183345689. The cubic root of 89130939 is about 446.6933570472.

The spelling of 89130939 in words is "eighty-nine million, one hundred thirty thousand, nine hundred thirty-nine".