28634712 has 32 divisors (see below), whose sum is σ = 72301680. Its totient is φ = 9449600.

The previous prime is 28634693. The next prime is 28634717. The reversal of 28634712 is 21743682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28634717) 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, 3483 + ... + 8330.

Almost surely, 2^28634712 is an apocalyptic number.

It is an amenable number.

28634712 is an abundant number, since it is smaller than the sum of its proper divisors (43666968).

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

28634712 is a wasteful number, since it uses less digits than its factorization.

28634712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11923 (or 11919 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 28634712 is about 5351.1411867003. The cubic root of 28634712 is about 305.9362505501.

The spelling of 28634712 in words is "twenty-eight million, six hundred thirty-four thousand, seven hundred twelve".