28648767 has 16 divisors (see below), whose sum is σ = 44836352. Its totient is φ = 15927840.

The previous prime is 28648759. The next prime is 28648799. The reversal of 28648767 is 76784682.

It is not a de Polignac number, because 28648767 - 2³ = 28648759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28648747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17659 + ... + 19212.

It is an arithmetic number, because the mean of its divisors is an integer number (2802272).

Almost surely, 2^28648767 is an apocalyptic number.

28648767 is a deficient number, since it is larger than the sum of its proper divisors (16187585).

28648767 is a wasteful number, since it uses less digits than its factorization.

28648767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36918.

The product of its digits is 903168, while the sum is 48.

The square root of 28648767 is about 5352.4542968623. The cubic root of 28648767 is about 305.9862973915.

The spelling of 28648767 in words is "twenty-eight million, six hundred forty-eight thousand, seven hundred sixty-seven".