28394902 has 8 divisors (see below), whose sum is σ = 42758856. Its totient is φ = 14141952.

The previous prime is 28394897. The next prime is 28394917. The reversal of 28394902 is 20949382.

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

It is a congruent number.

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, 27108 + ... + 28135.

It is an arithmetic number, because the mean of its divisors is an integer number (5344857).

Almost surely, 2^28394902 is an apocalyptic number.

28394902 is a deficient number, since it is larger than the sum of its proper divisors (14363954).

28394902 is a wasteful number, since it uses less digits than its factorization.

28394902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55502.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 28394902 is about 5328.6867049959. The cubic root of 28394902 is about 305.0798035375.

The spelling of 28394902 in words is "twenty-eight million, three hundred ninety-four thousand, nine hundred two".