28764355 has 16 divisors (see below), whose sum is σ = 35868960. Its totient is φ = 22125312.

The previous prime is 28764353. The next prime is 28764361. The reversal of 28764355 is 55346782.

It is a cyclic number.

It is not a de Polignac number, because 28764355 - 2¹ = 28764353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28764353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15592 + ... + 17338.

It is an arithmetic number, because the mean of its divisors is an integer number (2241810).

Almost surely, 2^28764355 is an apocalyptic number.

28764355 is a deficient number, since it is larger than the sum of its proper divisors (7104605).

28764355 is a wasteful number, since it uses less digits than its factorization.

28764355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its digits is 201600, while the sum is 40.

The square root of 28764355 is about 5363.2410909822. The cubic root of 28764355 is about 306.3972619550.

The spelling of 28764355 in words is "twenty-eight million, seven hundred sixty-four thousand, three hundred fifty-five".