28997359 has 8 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 27165696.

The previous prime is 28997347. The next prime is 28997377. The reversal of 28997359 is 95379982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28997359 - 2⁵ = 28997327 is a prime.

28997359 is a modest number, since divided by 7359 gives 2899 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28997659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^28997359 is an apocalyptic number.

28997359 is a deficient number, since it is larger than the sum of its proper divisors (1847441).

28997359 is a wasteful number, since it uses less digits than its factorization.

28997359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889.

The product of its digits is 1224720, while the sum is 52.

The square root of 28997359 is about 5384.9195908574. The cubic root of 28997359 is about 307.2223558616. Note that the first 3 decimals are identical.

The spelling of 28997359 in words is "twenty-eight million, nine hundred ninety-seven thousand, three hundred fifty-nine".