28376904 has 64 divisors (see below), whose sum is σ = 75018240. Its totient is φ = 8930880.

The previous prime is 28376897. The next prime is 28376921. The reversal of 28376904 is 40967382.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31549 + ... + 32435.

It is an arithmetic number, because the mean of its divisors is an integer number (1172160).

Almost surely, 2^28376904 is an apocalyptic number.

28376904 is a gapful number since it is divisible by the number (24) 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 28376904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37509120).

28376904 is an abundant number, since it is smaller than the sum of its proper divisors (46641336).

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

28376904 is a wasteful number, since it uses less digits than its factorization.

28376904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 28376904 is about 5326.9976534630. The cubic root of 28376904 is about 305.0153320251.

The spelling of 28376904 in words is "twenty-eight million, three hundred seventy-six thousand, nine hundred four".