28860964 has 24 divisors (see below), whose sum is σ = 55234368. Its totient is φ = 13086240.

The previous prime is 28860959. The next prime is 28860977. The reversal of 28860964 is 46906882.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28860964.

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, 34657 + ... + 35479.

It is an arithmetic number, because the mean of its divisors is an integer number (2301432).

Almost surely, 2^28860964 is an apocalyptic number.

It is an amenable number.

28860964 is a deficient number, since it is larger than the sum of its proper divisors (26373404).

28860964 is a wasteful number, since it uses less digits than its factorization.

28860964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 28860964 is about 5372.2401286614. The cubic root of 28860964 is about 306.7399042683.

The spelling of 28860964 in words is "twenty-eight million, eight hundred sixty thousand, nine hundred sixty-four".