28898632 has 24 divisors (see below), whose sum is σ = 63032310. Its totient is φ = 12384960.

The previous prime is 28898629. The next prime is 28898647. The reversal of 28898632 is 23689882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26977636 + 1920996 = 5194^2 + 1386^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36469 + ... + 37252.

Almost surely, 2^28898632 is an apocalyptic number.

It is an amenable number.

28898632 is an abundant number, since it is smaller than the sum of its proper divisors (34133678).

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

28898632 is a wasteful number, since it uses less digits than its factorization.

28898632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73741 (or 73730 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 28898632 is about 5375.7447856088. The cubic root of 28898632 is about 306.8732938489.

The spelling of 28898632 in words is "twenty-eight million, eight hundred ninety-eight thousand, six hundred thirty-two".