28767412 has 6 divisors (see below), whose sum is σ = 50342978. Its totient is φ = 14383704.

The previous prime is 28767377. The next prime is 28767413. The reversal of 28767412 is 21476782.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 1267876 = 5244^2 + 1126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28767413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3595923 + ... + 3595930.

Almost surely, 2^28767412 is an apocalyptic number.

It is an amenable number.

28767412 is a deficient number, since it is larger than the sum of its proper divisors (21575566).

28767412 is a wasteful number, since it uses less digits than its factorization.

28767412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191857 (or 7191855 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 28767412 is about 5363.5260789895. The cubic root of 28767412 is about 306.4081159355.

The spelling of 28767412 in words is "twenty-eight million, seven hundred sixty-seven thousand, four hundred twelve".