28746170 has 8 divisors (see below), whose sum is σ = 51743124. Its totient is φ = 11498464.

The previous prime is 28746161. The next prime is 28746181. The reversal of 28746170 is 7164782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25170289 + 3575881 = 5017^2 + 1891^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28746170.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437299 + ... + 1437318.

Almost surely, 2^28746170 is an apocalyptic number.

28746170 is a deficient number, since it is larger than the sum of its proper divisors (22996954).

28746170 is a wasteful number, since it uses less digits than its factorization.

28746170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874624.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 28746170 is about 5361.5454861448. The cubic root of 28746170 is about 306.3326796064.

The spelling of 28746170 in words is "twenty-eight million, seven hundred forty-six thousand, one hundred seventy".