28774910 has 16 divisors (see below), whose sum is σ = 52272000. Its totient is φ = 11403936.

The previous prime is 28774903. The next prime is 28774943. The reversal of 28774910 is 1947782.

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, 12110 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (3267000).

Almost surely, 2^28774910 is an apocalyptic number.

28774910 is a deficient number, since it is larger than the sum of its proper divisors (23497090).

28774910 is a wasteful number, since it uses less digits than its factorization.

28774910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26515.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 28774910 is about 5364.2250139233. The cubic root of 28774910 is about 306.4347345793.

The spelling of 28774910 in words is "twenty-eight million, seven hundred seventy-four thousand, nine hundred ten".