28769072 has 30 divisors (see below), whose sum is σ = 56621748. Its totient is φ = 14160256.

The previous prime is 28769057. The next prime is 28769077. The reversal of 28769072 is 27096782.

It is not an unprimeable number, because it can be changed into a prime (28769077) 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, 126623 + ... + 126849.

Almost surely, 2^28769072 is an apocalyptic number.

It is an amenable number.

28769072 is a deficient number, since it is larger than the sum of its proper divisors (27852676).

28769072 is an equidigital number, since it uses as much as digits as its factorization.

28769072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 28769072 is about 5363.6808257017. The cubic root of 28769072 is about 306.4140094988.

The spelling of 28769072 in words is "twenty-eight million, seven hundred sixty-nine thousand, seventy-two".