28940659 has 6 divisors (see below), whose sum is σ = 31810940. Its totient is φ = 26309580.

The previous prime is 28940627. The next prime is 28940663. The reversal of 28940659 is 95604982.

It is not a de Polignac number, because 28940659 - 2⁵ = 28940627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28940609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119469 + ... + 119710.

Almost surely, 2^28940659 is an apocalyptic number.

28940659 is a deficient number, since it is larger than the sum of its proper divisors (2870281).

28940659 is a wasteful number, since it uses less digits than its factorization.

28940659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239201 (or 239190 counting only the distinct ones).

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

The square root of 28940659 is about 5379.6523121852. The cubic root of 28940659 is about 307.0219827440.

The spelling of 28940659 in words is "twenty-eight million, nine hundred forty thousand, six hundred fifty-nine".