28861763 has 8 divisors (see below), whose sum is σ = 33176928. Its totient is φ = 24594624.

The previous prime is 28861759. The next prime is 28861769. The reversal of 28861763 is 36716882.

It is a happy number.

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 28861763 - 2² = 28861759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28861763.

It is not an unprimeable number, because it can be changed into a prime (28861769) 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, 10706 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (4147116).

Almost surely, 2^28861763 is an apocalyptic number.

28861763 is a deficient number, since it is larger than the sum of its proper divisors (4315165).

28861763 is a wasteful number, since it uses less digits than its factorization.

28861763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24013.

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

The square root of 28861763 is about 5372.3144919113. The cubic root of 28861763 is about 306.7427348843.

The spelling of 28861763 in words is "twenty-eight million, eight hundred sixty-one thousand, seven hundred sixty-three".