28650964 has 18 divisors (see below), whose sum is σ = 51403982. Its totient is φ = 13972800.

The previous prime is 28650961. The next prime is 28650983. The reversal of 28650964 is 46905682.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 476100 + 28174864 = 690^2 + 5308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4594 + ... + 8854.

Almost surely, 2^28650964 is an apocalyptic number.

It is an amenable number.

28650964 is a deficient number, since it is larger than the sum of its proper divisors (22753018).

28650964 is a wasteful number, since it uses less digits than its factorization.

28650964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 28650964 is about 5352.6595258806. The cubic root of 28650964 is about 305.9941189580.

The spelling of 28650964 in words is "twenty-eight million, six hundred fifty thousand, nine hundred sixty-four".