28876455 has 24 divisors (see below), whose sum is σ = 52998192. Its totient is φ = 14494464.

The previous prime is 28876451. The next prime is 28876483. The reversal of 28876455 is 55467882.

It is not a de Polignac number, because 28876455 - 2² = 28876451 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 28876455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28876451) 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, 18109 + ... + 19638.

It is an arithmetic number, because the mean of its divisors is an integer number (2208258).

Almost surely, 2^28876455 is an apocalyptic number.

28876455 is a deficient number, since it is larger than the sum of its proper divisors (24121737).

28876455 is a wasteful number, since it uses less digits than its factorization.

28876455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37775 (or 37772 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 28876455 is about 5373.6816987983. The cubic root of 28876455 is about 306.7947748997.

The spelling of 28876455 in words is "twenty-eight million, eight hundred seventy-six thousand, four hundred fifty-five".