28677294 has 64 divisors (see below), whose sum is σ = 67706880. Its totient is φ = 8981280.

The previous prime is 28677287. The next prime is 28677307. The reversal of 28677294 is 49277682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61707 + ... + 62169.

It is an arithmetic number, because the mean of its divisors is an integer number (1057920).

Almost surely, 2^28677294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28677294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33853440).

28677294 is an abundant number, since it is smaller than the sum of its proper divisors (39029586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28677294 is a wasteful number, since it uses less digits than its factorization.

28677294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 536 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 28677294 is about 5355.1184860841. The cubic root of 28677294 is about 306.0878256172.

The spelling of 28677294 in words is "twenty-eight million, six hundred seventy-seven thousand, two hundred ninety-four".