28956248 has 8 divisors (see below), whose sum is σ = 54292980. Its totient is φ = 14478120.

The previous prime is 28956229. The next prime is 28956251. The reversal of 28956248 is 84265982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×28956248³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28956199 and 28956208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809758 + ... + 1809773.

Almost surely, 2^28956248 is an apocalyptic number.

It is an amenable number.

28956248 is a deficient number, since it is larger than the sum of its proper divisors (25336732).

28956248 is a wasteful number, since it uses less digits than its factorization.

28956248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619537 (or 3619533 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 28956248 is about 5381.1010025830. The cubic root of 28956248 is about 307.0770990492.

The spelling of 28956248 in words is "twenty-eight million, nine hundred fifty-six thousand, two hundred forty-eight".