28375634 has 8 divisors (see below), whose sum is σ = 48643968. Its totient is φ = 12160980.

The previous prime is 28375631. The next prime is 28375663. The reversal of 28375634 is 43657382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28375631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013402 + ... + 1013429.

It is an arithmetic number, because the mean of its divisors is an integer number (6080496).

Almost surely, 2^28375634 is an apocalyptic number.

28375634 is a deficient number, since it is larger than the sum of its proper divisors (20268334).

28375634 is a wasteful number, since it uses less digits than its factorization.

28375634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026840.

The product of its digits is 120960, while the sum is 38.

The square root of 28375634 is about 5326.8784480219. The cubic root of 28375634 is about 305.0107816667.

The spelling of 28375634 in words is "twenty-eight million, three hundred seventy-five thousand, six hundred thirty-four".