28694370 has 32 divisors (see below), whose sum is σ = 72492480. Its totient is φ = 7248960.

The previous prime is 28694353. The next prime is 28694381. The reversal of 28694370 is 7349682.

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, 24601 + ... + 25740.

It is an arithmetic number, because the mean of its divisors is an integer number (2265390).

Almost surely, 2^28694370 is an apocalyptic number.

28694370 is an abundant number, since it is smaller than the sum of its proper divisors (43798110).

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

28694370 is a wasteful number, since it uses less digits than its factorization.

28694370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50370.

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

The square root of 28694370 is about 5356.7126112944. The cubic root of 28694370 is about 306.1485672690.

The spelling of 28694370 in words is "twenty-eight million, six hundred ninety-four thousand, three hundred seventy".