28617612 has 24 divisors (see below), whose sum is σ = 69678336. Its totient is φ = 9124368.

The previous prime is 28617583. The next prime is 28617649. The reversal of 28617612 is 21671682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51568 + ... + 52119.

It is an arithmetic number, because the mean of its divisors is an integer number (2903264).

Almost surely, 2^28617612 is an apocalyptic number.

It is an amenable number.

28617612 is an abundant number, since it is smaller than the sum of its proper divisors (41060724).

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

28617612 is a wasteful number, since it uses less digits than its factorization.

28617612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103717 (or 103715 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 28617612 is about 5349.5431580650. The cubic root of 28617612 is about 305.8753390288.

The spelling of 28617612 in words is "twenty-eight million, six hundred seventeen thousand, six hundred twelve".