28617734 has 8 divisors (see below), whose sum is σ = 42993720. Its totient is φ = 14286496.

The previous prime is 28617733. The next prime is 28617763. The reversal of 28617734 is 43771682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28617731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9539 + ... + 12174.

It is an arithmetic number, because the mean of its divisors is an integer number (5374215).

Almost surely, 2^28617734 is an apocalyptic number.

28617734 is a deficient number, since it is larger than the sum of its proper divisors (14375986).

28617734 is a wasteful number, since it uses less digits than its factorization.

28617734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22374.

The product of its digits is 56448, while the sum is 38.

The square root of 28617734 is about 5349.5545608957. The cubic root of 28617734 is about 305.8757736881.

The spelling of 28617734 in words is "twenty-eight million, six hundred seventeen thousand, seven hundred thirty-four".