28627508 has 96 divisors (see below), whose sum is σ = 66232320. Its totient is φ = 10523520.

The previous prime is 28627499. The next prime is 28627517. The reversal of 28627508 is 80572682.

It is an interprime number because it is at equal distance from previous prime (28627499) and next prime (28627517).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485183 + ... + 485241.

It is an arithmetic number, because the mean of its divisors is an integer number (689920).

Almost surely, 2^28627508 is an apocalyptic number.

28627508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28627508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33116160).

28627508 is an abundant number, since it is smaller than the sum of its proper divisors (37604812).

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

28627508 is a wasteful number, since it uses less digits than its factorization.

28627508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28627508 is about 5350.4680169122. The cubic root of 28627508 is about 305.9105923023.

The spelling of 28627508 in words is "twenty-eight million, six hundred twenty-seven thousand, five hundred eight".