28941764 has 24 divisors (see below), whose sum is σ = 51542400. Its totient is φ = 14217984.

The previous prime is 28941749. The next prime is 28941767. The reversal of 28941764 is 46714982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28941767) 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, 81812 + ... + 82164.

It is an arithmetic number, because the mean of its divisors is an integer number (2147600).

Almost surely, 2^28941764 is an apocalyptic number.

It is an amenable number.

28941764 is a deficient number, since it is larger than the sum of its proper divisors (22600636).

28941764 is a wasteful number, since it uses less digits than its factorization.

28941764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 657 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 28941764 is about 5379.7550130094. The cubic root of 28941764 is about 307.0258902221.

The spelling of 28941764 in words is "twenty-eight million, nine hundred forty-one thousand, seven hundred sixty-four".