28774486 has 16 divisors (see below), whose sum is σ = 47073600. Its totient is φ = 13111488.

The previous prime is 28774469. The next prime is 28774507. The reversal of 28774486 is 68447782.

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, 4951 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (2942100).

Almost surely, 2^28774486 is an apocalyptic number.

28774486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28774486 is a deficient number, since it is larger than the sum of its proper divisors (18299114).

28774486 is a wasteful number, since it uses less digits than its factorization.

28774486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103.

The product of its digits is 602112, while the sum is 46.

The square root of 28774486 is about 5364.1854926913. The cubic root of 28774486 is about 306.4332294606.

The spelling of 28774486 in words is "twenty-eight million, seven hundred seventy-four thousand, four hundred eighty-six".