28677612 has 48 divisors (see below), whose sum is σ = 71442560. Its totient is φ = 8926848.

The previous prime is 28677601. The next prime is 28677653. The reversal of 28677612 is 21677682.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15783 + ... + 17505.

Almost surely, 2^28677612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28677612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35721280).

28677612 is an abundant number, since it is smaller than the sum of its proper divisors (42764948).

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

28677612 is a wasteful number, since it uses less digits than its factorization.

28677612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 28677612 is about 5355.1481772216. The cubic root of 28677612 is about 306.0889570067.

The spelling of 28677612 in words is "twenty-eight million, six hundred seventy-seven thousand, six hundred twelve".