28980567 has 96 divisors (see below), whose sum is σ = 57507840. Its totient is φ = 13608000.

The previous prime is 28980557. The next prime is 28980577. The reversal of 28980567 is 76508982.

28980567 is a `hidden beast` number, since 2 + 8 + 9 + 80 + 567 = 666.

It is an interprime number because it is at equal distance from previous prime (28980557) and next prime (28980577).

It is not a de Polignac number, because 28980567 - 2¹¹ = 28978519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28980517) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 408142 + ... + 408212.

It is an arithmetic number, because the mean of its divisors is an integer number (599040).

Almost surely, 2^28980567 is an apocalyptic number.

28980567 is a deficient number, since it is larger than the sum of its proper divisors (28527273).

28980567 is a wasteful number, since it uses less digits than its factorization.

28980567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28980567 is about 5383.3601960114. The cubic root of 28980567 is about 307.1630415641.

The spelling of 28980567 in words is "twenty-eight million, nine hundred eighty thousand, five hundred sixty-seven".