28774622 has 16 divisors (see below), whose sum is σ = 44243712. Its totient is φ = 14029080.

The previous prime is 28774621. The next prime is 28774631. The reversal of 28774622 is 22647782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28774621) 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, 41297 + ... + 41987.

It is an arithmetic number, because the mean of its divisors is an integer number (2765232).

Almost surely, 2^28774622 is an apocalyptic number.

28774622 is a deficient number, since it is larger than the sum of its proper divisors (15469090).

28774622 is a wasteful number, since it uses less digits than its factorization.

28774622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

The product of its digits is 75264, while the sum is 38.

The square root of 28774622 is about 5364.1981693446. The cubic root of 28774622 is about 306.4337122361.

The spelling of 28774622 in words is "twenty-eight million, seven hundred seventy-four thousand, six hundred twenty-two".