28858532 has 6 divisors (see below), whose sum is σ = 50502438. Its totient is φ = 14429264.

The previous prime is 28858523. The next prime is 28858541. The reversal of 28858532 is 23585882.

It is an interprime number because it is at equal distance from previous prime (28858523) and next prime (28858541).

It can be written as a sum of positive squares in only one way, i.e., 16859236 + 11999296 = 4106^2 + 3464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28858532.

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, 3607313 + ... + 3607320.

It is an arithmetic number, because the mean of its divisors is an integer number (8417073).

Almost surely, 2^28858532 is an apocalyptic number.

It is an amenable number.

28858532 is a deficient number, since it is larger than the sum of its proper divisors (21643906).

28858532 is a wasteful number, since it uses less digits than its factorization.

28858532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214637 (or 7214635 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 28858532 is about 5372.0137751126. The cubic root of 28858532 is about 306.7312881042.

The spelling of 28858532 in words is "twenty-eight million, eight hundred fifty-eight thousand, five hundred thirty-two".