28146956 has 12 divisors (see below), whose sum is σ = 49951440. Its totient is φ = 13875120.

The previous prime is 28146949. The next prime is 28146967. The reversal of 28146956 is 65964182.

It is a happy number.

It is a super-2 number, since 2×28146956² = 1584502264131872, which contains 22 as substring.

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, 49271 + ... + 49838.

It is an arithmetic number, because the mean of its divisors is an integer number (4162620).

Almost surely, 2^28146956 is an apocalyptic number.

It is an amenable number.

28146956 is a deficient number, since it is larger than the sum of its proper divisors (21804484).

28146956 is a wasteful number, since it uses less digits than its factorization.

28146956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99184 (or 99182 counting only the distinct ones).

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

The square root of 28146956 is about 5305.3704865919. The cubic root of 28146956 is about 304.1892145000.

The spelling of 28146956 in words is "twenty-eight million, one hundred forty-six thousand, nine hundred fifty-six".