28294965 has 24 divisors (see below), whose sum is σ = 49440768. Its totient is φ = 14968800.

The previous prime is 28294957. The next prime is 28294967. The reversal of 28294965 is 56949282.

It is not a de Polignac number, because 28294965 - 2³ = 28294957 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28294965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28294967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3240 + ... + 8190.

It is an arithmetic number, because the mean of its divisors is an integer number (2060032).

Almost surely, 2^28294965 is an apocalyptic number.

It is an amenable number.

28294965 is a deficient number, since it is larger than the sum of its proper divisors (21145803).

28294965 is a wasteful number, since it uses less digits than its factorization.

28294965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089 (or 5086 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 28294965 is about 5319.3011759065. The cubic root of 28294965 is about 304.7214692699.

The spelling of 28294965 in words is "twenty-eight million, two hundred ninety-four thousand, nine hundred sixty-five".