28797974 has 16 divisors (see below), whose sum is σ = 44222112. Its totient is φ = 14059968.

The previous prime is 28797947. The next prime is 28797991. The reversal of 28797974 is 47979782.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 27362 + ... + 28394.

It is an arithmetic number, because the mean of its divisors is an integer number (2763882).

Almost surely, 2^28797974 is an apocalyptic number.

28797974 is a deficient number, since it is larger than the sum of its proper divisors (15424138).

28797974 is a wasteful number, since it uses less digits than its factorization.

28797974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its digits is 1778112, while the sum is 53.

The square root of 28797974 is about 5366.3743812746. The cubic root of 28797974 is about 306.5165850902.

The spelling of 28797974 in words is "twenty-eight million, seven hundred ninety-seven thousand, nine hundred seventy-four".