28879774 has 16 divisors (see below), whose sum is σ = 54009216. Its totient is φ = 11251800.

The previous prime is 28879759. The next prime is 28879777. The reversal of 28879774 is 47797882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28879777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93612 + ... + 93919.

It is an arithmetic number, because the mean of its divisors is an integer number (3375576).

Almost surely, 2^28879774 is an apocalyptic number.

28879774 is a deficient number, since it is larger than the sum of its proper divisors (25129442).

28879774 is a wasteful number, since it uses less digits than its factorization.

28879774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187551.

The product of its digits is 1580544, while the sum is 52.

The square root of 28879774 is about 5373.9905098539. The cubic root of 28879774 is about 306.8065285683.

The spelling of 28879774 in words is "twenty-eight million, eight hundred seventy-nine thousand, seven hundred seventy-four".