28887952 has 10 divisors (see below), whose sum is σ = 55970438. Its totient is φ = 14443968.

The previous prime is 28887941. The next prime is 28887979. The reversal of 28887952 is 25978882.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 1806336 = 5204^2 + 1344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28887896 and 28887905.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902733 + ... + 902764.

Almost surely, 2^28887952 is an apocalyptic number.

It is an amenable number.

28887952 is a deficient number, since it is larger than the sum of its proper divisors (27082486).

28887952 is a wasteful number, since it uses less digits than its factorization.

28887952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805505 (or 1805499 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 28887952 is about 5374.7513430856. The cubic root of 28887952 is about 306.8354857085.

The spelling of 28887952 in words is "twenty-eight million, eight hundred eighty-seven thousand, nine hundred fifty-two".