28025770 has 16 divisors (see below), whose sum is σ = 50604768. Its totient is φ = 11175120.

The previous prime is 28025749. The next prime is 28025791. The reversal of 28025770 is 7752082.

It is an interprime number because it is at equal distance from previous prime (28025749) and next prime (28025791).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (3162798).

Almost surely, 2^28025770 is an apocalyptic number.

28025770 is a deficient number, since it is larger than the sum of its proper divisors (22578998).

28025770 is a wasteful number, since it uses less digits than its factorization.

28025770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 28025770 is about 5293.9370982285. The cubic root of 28025770 is about 303.7520268342.

The spelling of 28025770 in words is "twenty-eight million, twenty-five thousand, seven hundred seventy".