28737076 has 6 divisors (see below), whose sum is σ = 50289890. Its totient is φ = 14368536.

The previous prime is 28737073. The next prime is 28737083. The reversal of 28737076 is 67073782.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 8702500 = 4476^2 + 2950^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3592131 + ... + 3592138.

Almost surely, 2^28737076 is an apocalyptic number.

It is an amenable number.

28737076 is a deficient number, since it is larger than the sum of its proper divisors (21552814).

28737076 is a wasteful number, since it uses less digits than its factorization.

28737076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184273 (or 7184271 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 28737076 is about 5360.6973426971. The cubic root of 28737076 is about 306.3003728886.

The spelling of 28737076 in words is "twenty-eight million, seven hundred thirty-seven thousand, seventy-six".