28328694 has 8 divisors (see below), whose sum is σ = 56657400. Its totient is φ = 9442896.

The previous prime is 28328693. The next prime is 28328731. The reversal of 28328694 is 49682382.

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

28328694 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28328693) 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, 2360719 + ... + 2360730.

It is an arithmetic number, because the mean of its divisors is an integer number (7082175).

Almost surely, 2^28328694 is an apocalyptic number.

28328694 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.

28328694 is a wasteful number, since it uses less digits than its factorization.

28328694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721454.

The product of its digits is 165888, while the sum is 42.

The square root of 28328694 is about 5322.4706668990. The cubic root of 28328694 is about 304.8425022192.

The spelling of 28328694 in words is "twenty-eight million, three hundred twenty-eight thousand, six hundred ninety-four".