89428459 has 16 divisors (see below), whose sum is σ = 97920000. Its totient is φ = 81358560.

The previous prime is 89428453. The next prime is 89428463. The reversal of 89428459 is 95482498.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89428459 is a prime.

It is a super-2 number, since 2×89428459² = 15994898558229362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89428453) 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, 87252 + ... + 88270.

It is an arithmetic number, because the mean of its divisors is an integer number (6120000).

Almost surely, 2^89428459 is an apocalyptic number.

89428459 is a deficient number, since it is larger than the sum of its proper divisors (8491541).

89428459 is a wasteful number, since it uses less digits than its factorization.

89428459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its digits is 829440, while the sum is 49.

The square root of 89428459 is about 9456.6621489826. The cubic root of 89428459 is about 447.1898274035.

The spelling of 89428459 in words is "eighty-nine million, four hundred twenty-eight thousand, four hundred fifty-nine".