28769968 has 10 divisors (see below), whose sum is σ = 55741844. Its totient is φ = 14384976.

The previous prime is 28769947. The next prime is 28769977. The reversal of 28769968 is 86996782.

It is a super-2 number, since 2×28769968² = 1655422117442048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899046 + ... + 899077.

Almost surely, 2^28769968 is an apocalyptic number.

It is an amenable number.

28769968 is a deficient number, since it is larger than the sum of its proper divisors (26971876).

28769968 is a wasteful number, since it uses less digits than its factorization.

28769968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798131 (or 1798125 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 55.

The square root of 28769968 is about 5363.7643497827. The cubic root of 28769968 is about 306.4171905086.

The spelling of 28769968 in words is "twenty-eight million, seven hundred sixty-nine thousand, nine hundred sixty-eight".