28704376 has 16 divisors (see below), whose sum is σ = 54837000. Its totient is φ = 14081184.

The previous prime is 28704371. The next prime is 28704397. The reversal of 28704376 is 67340782.

28704376 = T₄₃₇₃ + T₄₃₇₄ + T₄₃₇₅.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28704371) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33426 + ... + 34273.

Almost surely, 2^28704376 is an apocalyptic number.

28704376 is the 4375-th centered triangular number.

It is an amenable number.

28704376 is a deficient number, since it is larger than the sum of its proper divisors (26132624).

28704376 is a wasteful number, since it uses less digits than its factorization.

28704376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67758 (or 67754 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 28704376 is about 5357.6464982304. The cubic root of 28704376 is about 306.1841487735.

The spelling of 28704376 in words is "twenty-eight million, seven hundred four thousand, three hundred seventy-six".