28611896 has 16 divisors (see below), whose sum is σ = 54201840. Its totient is φ = 14158080.

The previous prime is 28611889. The next prime is 28611911. The reversal of 28611896 is 69811682.

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, 17660 + ... + 19211.

It is an arithmetic number, because the mean of its divisors is an integer number (3387615).

Almost surely, 2^28611896 is an apocalyptic number.

It is an amenable number.

28611896 is a deficient number, since it is larger than the sum of its proper divisors (25589944).

28611896 is a wasteful number, since it uses less digits than its factorization.

28611896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36974 (or 36970 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 28611896 is about 5349.0088801571. The cubic root of 28611896 is about 305.8549727842.

The spelling of 28611896 in words is "twenty-eight million, six hundred eleven thousand, eight hundred ninety-six".