28371752 has 8 divisors (see below), whose sum is σ = 53197050. Its totient is φ = 14185872.

The previous prime is 28371737. The next prime is 28371779. The reversal of 28371752 is 25717382.

It can be written as a sum of positive squares in only one way, i.e., 28366276 + 5476 = 5326^2 + 74^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773227 + ... + 1773242.

Almost surely, 2^28371752 is an apocalyptic number.

It is an amenable number.

28371752 is a deficient number, since it is larger than the sum of its proper divisors (24825298).

28371752 is a wasteful number, since it uses less digits than its factorization.

28371752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546475 (or 3546471 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 28371752 is about 5326.5140570546. The cubic root of 28371752 is about 304.9968717766.

The spelling of 28371752 in words is "twenty-eight million, three hundred seventy-one thousand, seven hundred fifty-two".