28376975 has 24 divisors (see below), whose sum is σ = 40414080. Its totient is φ = 19548000.

The previous prime is 28376969. The next prime is 28376981. The reversal of 28376975 is 57967382.

It is an interprime number because it is at equal distance from previous prime (28376969) and next prime (28376981).

It is a de Polignac number, because none of the positive numbers 2^k-28376975 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2510 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (1683920).

Almost surely, 2^28376975 is an apocalyptic number.

28376975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28376975 is a deficient number, since it is larger than the sum of its proper divisors (12037105).

28376975 is a wasteful number, since it uses less digits than its factorization.

28376975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471 (or 5466 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 28376975 is about 5327.0043176254. The cubic root of 28376975 is about 305.0155864112.

The spelling of 28376975 in words is "twenty-eight million, three hundred seventy-six thousand, nine hundred seventy-five".