89428569 has 8 divisors (see below), whose sum is σ = 120096480. Its totient is φ = 59189856.

The previous prime is 89428523. The next prime is 89428571. The reversal of 89428569 is 96582498.

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

It is not a de Polignac number, because 89428569 - 2⁷ = 89428441 is a prime.

It is a super-2 number, since 2×89428569² = 15994937906775522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89428589) 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, 106812 + ... + 107645.

It is an arithmetic number, because the mean of its divisors is an integer number (15012060).

Almost surely, 2^89428569 is an apocalyptic number.

It is an amenable number.

89428569 is a deficient number, since it is larger than the sum of its proper divisors (30667911).

89428569 is a wasteful number, since it uses less digits than its factorization.

89428569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214599.

The product of its digits is 1244160, while the sum is 51.

The square root of 89428569 is about 9456.6679649864. The cubic root of 89428569 is about 447.1900107562.

The spelling of 89428569 in words is "eighty-nine million, four hundred twenty-eight thousand, five hundred sixty-nine".