28942007 has 8 divisors (see below), whose sum is σ = 30927600. Its totient is φ = 26987904.

The previous prime is 28941977. The next prime is 28942009. The reversal of 28942007 is 70024982.

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 28942007 - 2¹⁰ = 28940983 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 (28942009) 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, 5957 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (3865950).

Almost surely, 2^28942007 is an apocalyptic number.

28942007 is a deficient number, since it is larger than the sum of its proper divisors (1985593).

28942007 is a wasteful number, since it uses less digits than its factorization.

28942007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15745.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28942007 is about 5379.7775976336. Note that the first 3 decimals coincide. The cubic root of 28942007 is about 307.0267495003.

Adding to 28942007 its reverse (70024982), we get a palindrome (98966989).

The spelling of 28942007 in words is "twenty-eight million, nine hundred forty-two thousand, seven".