28750767 has 8 divisors (see below), whose sum is σ = 38424624. Its totient is φ = 19122048.

The previous prime is 28750753. The next prime is 28750769. The reversal of 28750767 is 76705782.

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

It is not a de Polignac number, because 28750767 - 2⁷ = 28750639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28750769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9768 + ... + 12365.

It is an arithmetic number, because the mean of its divisors is an integer number (4803078).

Almost surely, 2^28750767 is an apocalyptic number.

28750767 is a deficient number, since it is larger than the sum of its proper divisors (9673857).

28750767 is a wasteful number, since it uses less digits than its factorization.

28750767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22569.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 28750767 is about 5361.9741700236. The cubic root of 28750767 is about 306.3490079992.

The spelling of 28750767 in words is "twenty-eight million, seven hundred fifty thousand, seven hundred sixty-seven".