28130659 has 4 divisors (see below), whose sum is σ = 29611240. Its totient is φ = 26650080.

The previous prime is 28130657. The next prime is 28130677. The reversal of 28130659 is 95603182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28130659 - 2¹ = 28130657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28130653) 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, 740262 + ... + 740299.

It is an arithmetic number, because the mean of its divisors is an integer number (7402810).

Almost surely, 2^28130659 is an apocalyptic number.

28130659 is a deficient number, since it is larger than the sum of its proper divisors (1480581).

28130659 is a wasteful number, since it uses less digits than its factorization.

28130659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480580.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 28130659 is about 5303.8343677004. The cubic root of 28130659 is about 304.1304949626.

The spelling of 28130659 in words is "twenty-eight million, one hundred thirty thousand, six hundred fifty-nine".