28719355 has 24 divisors (see below), whose sum is σ = 41586912. Its totient is φ = 18648576.

The previous prime is 28719343. The next prime is 28719373. The reversal of 28719355 is 55391782.

It is not a de Polignac number, because 28719355 - 2⁵ = 28719323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11499 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (1732788).

Almost surely, 2^28719355 is an apocalyptic number.

28719355 is a deficient number, since it is larger than the sum of its proper divisors (12867557).

28719355 is a wasteful number, since it uses less digits than its factorization.

28719355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2304 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 28719355 is about 5359.0442244863. The cubic root of 28719355 is about 306.2373988984.

The spelling of 28719355 in words is "twenty-eight million, seven hundred nineteen thousand, three hundred fifty-five".