89591428 has 12 divisors (see below), whose sum is σ = 166007772. Its totient is φ = 42160640.

The previous prime is 89591423. The next prime is 89591429. The reversal of 89591428 is 82419598.

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 39917124 = 7048^2 + 6318^2 .

It is not an unprimeable number, because it can be changed into a prime (89591423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658693 + ... + 658828.

It is an arithmetic number, because the mean of its divisors is an integer number (13833981).

Almost surely, 2^89591428 is an apocalyptic number.

It is an amenable number.

89591428 is a deficient number, since it is larger than the sum of its proper divisors (76416344).

89591428 is a wasteful number, since it uses less digits than its factorization.

89591428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317542 (or 1317540 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 89591428 is about 9465.2748507373. The cubic root of 89591428 is about 447.4613064346.

The spelling of 89591428 in words is "eighty-nine million, five hundred ninety-one thousand, four hundred twenty-eight".