28860532 has 6 divisors (see below), whose sum is σ = 50505938. Its totient is φ = 14430264.

The previous prime is 28860529. The next prime is 28860541. The reversal of 28860532 is 23506882.

It can be written as a sum of positive squares in only one way, i.e., 25341156 + 3519376 = 5034^2 + 1876^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607563 + ... + 3607570.

Almost surely, 2^28860532 is an apocalyptic number.

It is an amenable number.

28860532 is a deficient number, since it is larger than the sum of its proper divisors (21645406).

28860532 is a wasteful number, since it uses less digits than its factorization.

28860532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7215137 (or 7215135 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28860532 is about 5372.1999218197. The cubic root of 28860532 is about 306.7383738008.

It can be divided in two parts, 28860 and 532, that added together give a palindrome (29392).

The spelling of 28860532 in words is "twenty-eight million, eight hundred sixty thousand, five hundred thirty-two".