28647452 has 6 divisors (see below), whose sum is σ = 50133048. Its totient is φ = 14323724.

The previous prime is 28647427. The next prime is 28647467. The reversal of 28647452 is 25474682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580928 + ... + 3580935.

It is an arithmetic number, because the mean of its divisors is an integer number (8355508).

Almost surely, 2^28647452 is an apocalyptic number.

It is an amenable number.

28647452 is a deficient number, since it is larger than the sum of its proper divisors (21485596).

28647452 is a wasteful number, since it uses less digits than its factorization.

28647452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161867 (or 7161865 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 28647452 is about 5352.3314546093. The cubic root of 28647452 is about 305.9816156526.

The spelling of 28647452 in words is "twenty-eight million, six hundred forty-seven thousand, four hundred fifty-two".