28767513 has 8 divisors (see below), whose sum is σ = 38458368. Its totient is φ = 19127504.

The previous prime is 28767511. The next prime is 28767547. The reversal of 28767513 is 31576782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28767513 - 2¹ = 28767511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28767511) 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, 11370 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (4807296).

Almost surely, 2^28767513 is an apocalyptic number.

It is an amenable number.

28767513 is a deficient number, since it is larger than the sum of its proper divisors (9690855).

28767513 is a wasteful number, since it uses less digits than its factorization.

28767513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25423.

The product of its digits is 70560, while the sum is 39.

The square root of 28767513 is about 5363.5354944290. The cubic root of 28767513 is about 306.4084745263.

The spelling of 28767513 in words is "twenty-eight million, seven hundred sixty-seven thousand, five hundred thirteen".