28354783 has 4 divisors (see below), whose sum is σ = 29847160. Its totient is φ = 26862408.

The previous prime is 28354769. The next prime is 28354811. The reversal of 28354783 is 38745382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28354783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28354723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746160 + ... + 746197.

It is an arithmetic number, because the mean of its divisors is an integer number (7461790).

Almost surely, 2^28354783 is an apocalyptic number.

28354783 is a deficient number, since it is larger than the sum of its proper divisors (1492377).

28354783 is a wasteful number, since it uses less digits than its factorization.

28354783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492376.

The product of its digits is 161280, while the sum is 40.

The square root of 28354783 is about 5324.9209383802. The cubic root of 28354783 is about 304.9360539595.

The spelling of 28354783 in words is "twenty-eight million, three hundred fifty-four thousand, seven hundred eighty-three".