28739896 has 16 divisors (see below), whose sum is σ = 53998200. Its totient is φ = 14340384.

The previous prime is 28739891. The next prime is 28739917. The reversal of 28739896 is 69893782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28739891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 7618.

Almost surely, 2^28739896 is an apocalyptic number.

It is an amenable number.

28739896 is a deficient number, since it is larger than the sum of its proper divisors (25258304).

28739896 is a wasteful number, since it uses less digits than its factorization.

28739896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7398 (or 7394 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 28739896 is about 5360.9603617262. The cubic root of 28739896 is about 306.3103917552.

It can be divided in two parts, 2873 and 9896, that added together give a square (12769 = 113²).

The spelling of 28739896 in words is "twenty-eight million, seven hundred thirty-nine thousand, eight hundred ninety-six".