89649428 has 24 divisors (see below), whose sum is σ = 173565504. Its totient is φ = 40174400.

The previous prime is 89649407. The next prime is 89649451. The reversal of 89649428 is 82494698.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11225 + ... + 17472.

It is an arithmetic number, because the mean of its divisors is an integer number (7231896).

Almost surely, 2^89649428 is an apocalyptic number.

It is an amenable number.

89649428 is a deficient number, since it is larger than the sum of its proper divisors (83916076).

89649428 is a wasteful number, since it uses less digits than its factorization.

89649428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28783 (or 28781 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 89649428 is about 9468.3381857642. The cubic root of 89649428 is about 447.5578452736.

The spelling of 89649428 in words is "eighty-nine million, six hundred forty-nine thousand, four hundred twenty-eight".