28734366 has 8 divisors (see below), whose sum is σ = 57468744. Its totient is φ = 9578120.

The previous prime is 28734347. The next prime is 28734367. The reversal of 28734366 is 66343782.

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

28734366 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28734367) 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, 2394525 + ... + 2394536.

It is an arithmetic number, because the mean of its divisors is an integer number (7183593).

Almost surely, 2^28734366 is an apocalyptic number.

28734366 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.

28734366 is a wasteful number, since it uses less digits than its factorization.

28734366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789066.

The product of its digits is 145152, while the sum is 39.

The square root of 28734366 is about 5360.4445711153. Note that the first 3 decimals coincide. The cubic root of 28734366 is about 306.2907442112.

The spelling of 28734366 in words is "twenty-eight million, seven hundred thirty-four thousand, three hundred sixty-six".