28367612 has 24 divisors (see below), whose sum is σ = 61100256. Its totient is φ = 11222208.

The previous prime is 28367569. The next prime is 28367617. The reversal of 28367612 is 21676382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28367617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38603 + ... + 39330.

It is an arithmetic number, because the mean of its divisors is an integer number (2545844).

Almost surely, 2^28367612 is an apocalyptic number.

It is an amenable number.

28367612 is an abundant number, since it is smaller than the sum of its proper divisors (32732644).

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

28367612 is a wasteful number, since it uses less digits than its factorization.

28367612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77957 (or 77955 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 28367612 is about 5326.1254209791. The cubic root of 28367612 is about 304.9820360288.

The spelling of 28367612 in words is "twenty-eight million, three hundred sixty-seven thousand, six hundred twelve".