28774734 has 8 divisors (see below), whose sum is σ = 57549480. Its totient is φ = 9591576.

The previous prime is 28774717. The next prime is 28774751. The reversal of 28774734 is 43747782.

It is an interprime number because it is at equal distance from previous prime (28774717) and next prime (28774751).

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

28774734 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397889 + ... + 2397900.

It is an arithmetic number, because the mean of its divisors is an integer number (7193685).

Almost surely, 2^28774734 is an apocalyptic number.

28774734 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.

28774734 is a wasteful number, since it uses less digits than its factorization.

28774734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795794.

The product of its digits is 263424, while the sum is 42.

The square root of 28774734 is about 5364.2086089189. The cubic root of 28774734 is about 306.4341098148.

The spelling of 28774734 in words is "twenty-eight million, seven hundred seventy-four thousand, seven hundred thirty-four".