28767007 has 6 divisors (see below), whose sum is σ = 30361128. Its totient is φ = 27252612.

The previous prime is 28766993. The next prime is 28767031. The reversal of 28767007 is 70076782.

It is not a de Polignac number, because 28767007 - 2¹¹ = 28764959 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 (28767047) 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 5 ways as a sum of consecutive naturals, for example, 39483 + ... + 40204.

It is an arithmetic number, because the mean of its divisors is an integer number (5060188).

Almost surely, 2^28767007 is an apocalyptic number.

28767007 is a deficient number, since it is larger than the sum of its proper divisors (1594121).

28767007 is an equidigital number, since it uses as much as digits as its factorization.

28767007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79725 (or 79706 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 28767007 is about 5363.4883238430. The cubic root of 28767007 is about 306.4066780137.

The spelling of 28767007 in words is "twenty-eight million, seven hundred sixty-seven thousand, seven".