28763655 has 16 divisors (see below), whose sum is σ = 46233600. Its totient is φ = 15270048.

The previous prime is 28763641. The next prime is 28763723. The reversal of 28763655 is 55636782.

It is not a de Polignac number, because 28763655 - 2¹⁶ = 28698119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955 + ... + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (2889600).

Almost surely, 2^28763655 is an apocalyptic number.

28763655 is a deficient number, since it is larger than the sum of its proper divisors (17469945).

28763655 is a wasteful number, since it uses less digits than its factorization.

28763655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8830.

The product of its digits is 302400, while the sum is 42.

The square root of 28763655 is about 5363.1758315386. The cubic root of 28763655 is about 306.3947764734.

The spelling of 28763655 in words is "twenty-eight million, seven hundred sixty-three thousand, six hundred fifty-five".