28831746 has 8 divisors (see below), whose sum is σ = 57663504. Its totient is φ = 9610580.

The previous prime is 28831723. The next prime is 28831783. The reversal of 28831746 is 64713882.

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

28831746 is an admirable 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, 2402640 + ... + 2402651.

It is an arithmetic number, because the mean of its divisors is an integer number (7207938).

Almost surely, 2^28831746 is an apocalyptic number.

28831746 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.

28831746 is a wasteful number, since it uses less digits than its factorization.

28831746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805296.

The product of its digits is 64512, while the sum is 39.

The square root of 28831746 is about 5369.5200902874. The cubic root of 28831746 is about 306.6363578006.

The spelling of 28831746 in words is "twenty-eight million, eight hundred thirty-one thousand, seven hundred forty-six".