28076707 has 4 divisors (see below), whose sum is σ = 29728296. Its totient is φ = 26425120.

The previous prime is 28076683. The next prime is 28076717. The reversal of 28076707 is 70767082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28076707 - 2⁷ = 28076579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28076717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825769 + ... + 825802.

It is an arithmetic number, because the mean of its divisors is an integer number (7432074).

Almost surely, 2^28076707 is an apocalyptic number.

28076707 is a deficient number, since it is larger than the sum of its proper divisors (1651589).

28076707 is a wasteful number, since it uses less digits than its factorization.

28076707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651588.

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

The square root of 28076707 is about 5298.7457949972. The cubic root of 28076707 is about 303.9359391505.

The spelling of 28076707 in words is "twenty-eight million, seventy-six thousand, seven hundred seven".