28546372 has 6 divisors (see below), whose sum is σ = 49956158. Its totient is φ = 14273184.

The previous prime is 28546363. The next prime is 28546387. The reversal of 28546372 is 27364582.

It can be written as a sum of positive squares in only one way, i.e., 19219456 + 9326916 = 4384^2 + 3054^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3568293 + ... + 3568300.

Almost surely, 2^28546372 is an apocalyptic number.

It is an amenable number.

28546372 is a deficient number, since it is larger than the sum of its proper divisors (21409786).

28546372 is a wasteful number, since it uses less digits than its factorization.

28546372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136597 (or 7136595 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 28546372 is about 5342.8804965112. The cubic root of 28546372 is about 305.6213152032.

The spelling of 28546372 in words is "twenty-eight million, five hundred forty-six thousand, three hundred seventy-two".