28741782 has 8 divisors (see below), whose sum is σ = 57483576. Its totient is φ = 9580592.

The previous prime is 28741771. The next prime is 28741819. The reversal of 28741782 is 28714782.

It is a sphenic number, since it is the product of 3 distinct primes.

28741782 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28741782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395143 + ... + 2395154.

It is an arithmetic number, because the mean of its divisors is an integer number (7185447).

Almost surely, 2^28741782 is an apocalyptic number.

28741782 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28741782 is a wasteful number, since it uses less digits than its factorization.

28741782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790302.

The product of its digits is 50176, while the sum is 39.

The square root of 28741782 is about 5361.1362601598. The cubic root of 28741782 is about 306.3170919507.

Subtracting from 28741782 its reverse (28714782), we obtain a cube (27000 = 30³).

It can be divided in two parts, 2874 and 1782, that added together give a triangular number (4656 = T₉₆).

The spelling of 28741782 in words is "twenty-eight million, seven hundred forty-one thousand, seven hundred eighty-two".