28760985 has 48 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 13777920.

The previous prime is 28760981. The next prime is 28760989. The reversal of 28760985 is 58906782.

It is an interprime number because it is at equal distance from previous prime (28760981) and next prime (28760989).

It is not a de Polignac number, because 28760985 - 2² = 28760981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28760985.

It is not an unprimeable number, because it can be changed into a prime (28760981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47716 + ... + 48314.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^28760985 is an apocalyptic number.

It is an amenable number.

28760985 is a deficient number, since it is larger than the sum of its proper divisors (26275815).

28760985 is a wasteful number, since it uses less digits than its factorization.

28760985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28760985 is about 5362.9269060840. The cubic root of 28760985 is about 306.3852957663.

The spelling of 28760985 in words is "twenty-eight million, seven hundred sixty thousand, nine hundred eighty-five".