28561496 has 16 divisors (see below), whose sum is σ = 56703240. Its totient is φ = 13440640.

The previous prime is 28561493. The next prime is 28561501. The reversal of 28561496 is 69416582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28561493) 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, 104870 + ... + 105141.

Almost surely, 2^28561496 is an apocalyptic number.

It is an amenable number.

28561496 is a deficient number, since it is larger than the sum of its proper divisors (28141744).

28561496 is a wasteful number, since it uses less digits than its factorization.

28561496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210034 (or 210030 counting only the distinct ones).

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

The square root of 28561496 is about 5344.2956505044. The cubic root of 28561496 is about 305.6752788700.

The spelling of 28561496 in words is "twenty-eight million, five hundred sixty-one thousand, four hundred ninety-six".