28616612 has 12 divisors (see below), whose sum is σ = 50144640. Its totient is φ = 14289576.

The previous prime is 28616587. The next prime is 28616617. The reversal of 28616612 is 21661682.

It is a super-3 number, since 3×28616612³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28616617) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 908 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (4178720).

Almost surely, 2^28616612 is an apocalyptic number.

It is an amenable number.

28616612 is a deficient number, since it is larger than the sum of its proper divisors (21528028).

28616612 is a wasteful number, since it uses less digits than its factorization.

28616612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370 (or 9368 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 28616612 is about 5349.4496913234. The cubic root of 28616612 is about 305.8717762006.

The spelling of 28616612 in words is "twenty-eight million, six hundred sixteen thousand, six hundred twelve".