28904194 has 8 divisors (see below), whose sum is σ = 47297808. Its totient is φ = 13138260.

The previous prime is 28904189. The next prime is 28904203. The reversal of 28904194 is 49140982.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656892 + ... + 656935.

It is an arithmetic number, because the mean of its divisors is an integer number (5912226).

Almost surely, 2^28904194 is an apocalyptic number.

28904194 is a deficient number, since it is larger than the sum of its proper divisors (18393614).

28904194 is a wasteful number, since it uses less digits than its factorization.

28904194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313840.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 28904194 is about 5376.2620843854. The cubic root of 28904194 is about 306.8929801299.

The spelling of 28904194 in words is "twenty-eight million, nine hundred four thousand, one hundred ninety-four".