89431953 has 8 divisors (see below), whose sum is σ = 128415168. Its totient is φ = 55035024.

The previous prime is 89431949. The next prime is 89431957. The reversal of 89431953 is 35913498.

It is an interprime number because it is at equal distance from previous prime (89431949) and next prime (89431957).

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

It is not a de Polignac number, because 89431953 - 2² = 89431949 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89431957) 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, 1146525 + ... + 1146602.

It is an arithmetic number, because the mean of its divisors is an integer number (16051896).

Almost surely, 2^89431953 is an apocalyptic number.

It is an amenable number.

89431953 is a deficient number, since it is larger than the sum of its proper divisors (38983215).

89431953 is a wasteful number, since it uses less digits than its factorization.

89431953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293143.

The product of its digits is 116640, while the sum is 42.

The square root of 89431953 is about 9456.8468846651. The cubic root of 89431953 is about 447.1956512800.

The spelling of 89431953 in words is "eighty-nine million, four hundred thirty-one thousand, nine hundred fifty-three".