28872966 has 16 divisors (see below), whose sum is σ = 59609088. Its totient is φ = 9313800.

The previous prime is 28872917. The next prime is 28872967. The reversal of 28872966 is 66927882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28872967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77430 + ... + 77801.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^28872966 is an apocalyptic number.

28872966 is an abundant number, since it is smaller than the sum of its proper divisors (30736122).

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

28872966 is a wasteful number, since it uses less digits than its factorization.

28872966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155267.

The product of its digits is 580608, while the sum is 48.

The square root of 28872966 is about 5373.3570512297. The cubic root of 28872966 is about 306.7824182343.

The spelling of 28872966 in words is "twenty-eight million, eight hundred seventy-two thousand, nine hundred sixty-six".