28661596 has 6 divisors (see below), whose sum is σ = 50157800. Its totient is φ = 14330796.

The previous prime is 28661593. The next prime is 28661623. The reversal of 28661596 is 69516682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28661593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582696 + ... + 3582703.

Almost surely, 2^28661596 is an apocalyptic number.

It is an amenable number.

28661596 is a deficient number, since it is larger than the sum of its proper divisors (21496204).

28661596 is a wasteful number, since it uses less digits than its factorization.

28661596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165403 (or 7165401 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 28661596 is about 5353.6525849181. The cubic root of 28661596 is about 306.0319644226.

The spelling of 28661596 in words is "twenty-eight million, six hundred sixty-one thousand, five hundred ninety-six".