28623597 has 16 divisors (see below), whose sum is σ = 40809600. Its totient is φ = 17782272.

The previous prime is 28623593. The next prime is 28623599. The reversal of 28623597 is 79532682.

It is not a de Polignac number, because 28623597 - 2² = 28623593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28623593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (2550600).

Almost surely, 2^28623597 is an apocalyptic number.

It is an amenable number.

28623597 is a deficient number, since it is larger than the sum of its proper divisors (12186003).

28623597 is a wasteful number, since it uses less digits than its factorization.

28623597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572.

The product of its digits is 181440, while the sum is 42.

The square root of 28623597 is about 5350.1025223822. The cubic root of 28623597 is about 305.8966608206.

The spelling of 28623597 in words is "twenty-eight million, six hundred twenty-three thousand, five hundred ninety-seven".