28930965 has 32 divisors (see below), whose sum is σ = 53114880. Its totient is φ = 13172544.

The previous prime is 28930933. The next prime is 28930969. The reversal of 28930965 is 56903982.

It is not a de Polignac number, because 28930965 - 2⁵ = 28930933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28930969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39432 + ... + 40158.

It is an arithmetic number, because the mean of its divisors is an integer number (1659840).

Almost surely, 2^28930965 is an apocalyptic number.

It is an amenable number.

28930965 is a deficient number, since it is larger than the sum of its proper divisors (24183915).

28930965 is a wasteful number, since it uses less digits than its factorization.

28930965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 28930965 is about 5378.7512491284. The cubic root of 28930965 is about 306.9876987577.

The spelling of 28930965 in words is "twenty-eight million, nine hundred thirty thousand, nine hundred sixty-five".