28733782 has 16 divisors (see below), whose sum is σ = 53736192. Its totient is φ = 11194920.

The previous prime is 28733759. The next prime is 28733797.

28733782 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93138 + ... + 93445.

It is an arithmetic number, because the mean of its divisors is an integer number (3358512).

Almost surely, 2^28733782 is an apocalyptic number.

28733782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28733782 is a deficient number, since it is larger than the sum of its proper divisors (25002410).

28733782 is a wasteful number, since it uses less digits than its factorization.

28733782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186603.

The product of its digits is 112896, while the sum is 40.

The square root of 28733782 is about 5360.3900977448. The cubic root of 28733782 is about 306.2886691696.

The spelling of 28733782 in words is "twenty-eight million, seven hundred thirty-three thousand, seven hundred eighty-two".