89123430 has 32 divisors (see below), whose sum is σ = 233342208. Its totient is φ = 21605600.

The previous prime is 89123387. The next prime is 89123431. The reversal of 89123430 is 3432198.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89123431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134706 + ... + 135365.

It is an arithmetic number, because the mean of its divisors is an integer number (7291944).

Almost surely, 2^89123430 is an apocalyptic number.

89123430 is an abundant number, since it is smaller than the sum of its proper divisors (144218778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89123430 is a wasteful number, since it uses less digits than its factorization.

89123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270092.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 89123430 is about 9440.5206424222. The cubic root of 89123430 is about 446.6808125269.

The spelling of 89123430 in words is "eighty-nine million, one hundred twenty-three thousand, four hundred thirty".