28941656 has 16 divisors (see below), whose sum is σ = 54322800. Its totient is φ = 14455584.

The previous prime is 28941593. The next prime is 28941691. The reversal of 28941656 is 65614982.

It is a happy number.

It is a congruent number.

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, 13250 + ... + 15278.

It is an arithmetic number, because the mean of its divisors is an integer number (3395175).

Almost surely, 2^28941656 is an apocalyptic number.

It is an amenable number.

28941656 is a deficient number, since it is larger than the sum of its proper divisors (25381144).

28941656 is a wasteful number, since it uses less digits than its factorization.

28941656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3814 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 28941656 is about 5379.7449753683. The cubic root of 28941656 is about 307.0255083191.

The spelling of 28941656 in words is "twenty-eight million, nine hundred forty-one thousand, six hundred fifty-six".