28673470 has 32 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 9313056.

The previous prime is 28673467. The next prime is 28673471. The reversal of 28673470 is 7437682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28673471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9450 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (1940400).

Almost surely, 2^28673470 is an apocalyptic number.

28673470 is an abundant number, since it is smaller than the sum of its proper divisors (33419330).

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

28673470 is a wasteful number, since it uses less digits than its factorization.

28673470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21592.

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

The square root of 28673470 is about 5354.7614325944. The cubic root of 28673470 is about 306.0742198254.

The spelling of 28673470 in words is "twenty-eight million, six hundred seventy-three thousand, four hundred seventy".