28622976 has 64 divisors (see below), whose sum is σ = 76744800. Its totient is φ = 9451520.

The previous prime is 28622947. The next prime is 28622981. The reversal of 28622976 is 67922682.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50020 + ... + 50588.

Almost surely, 2^28622976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28622976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38372400).

28622976 is an abundant number, since it is smaller than the sum of its proper divisors (48121824).

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

28622976 is a wasteful number, since it uses less digits than its factorization.

28622976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 705 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 28622976 is about 5350.0444857964. The cubic root of 28622976 is about 305.8944486225.

The spelling of 28622976 in words is "twenty-eight million, six hundred twenty-two thousand, nine hundred seventy-six".