28730982 has 32 divisors (see below), whose sum is σ = 66915072. Its totient is φ = 8053344.

The previous prime is 28730971. The next prime is 28730993. The reversal of 28730982 is 28903782.

It is an interprime number because it is at equal distance from previous prime (28730971) and next prime (28730993).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28730982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4228 + ... + 8679.

It is an arithmetic number, because the mean of its divisors is an integer number (2091096).

Almost surely, 2^28730982 is an apocalyptic number.

28730982 is an abundant number, since it is smaller than the sum of its proper divisors (38184090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28730982 is a wasteful number, since it uses less digits than its factorization.

28730982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 28730982 is about 5360.1289163601. The cubic root of 28730982 is about 306.2787199499.

The spelling of 28730982 in words is "twenty-eight million, seven hundred thirty thousand, nine hundred eighty-two".