28996007 has 4 divisors (see below), whose sum is σ = 29088960. Its totient is φ = 28903056.

The previous prime is 28996001. The next prime is 28996103. The reversal of 28996007 is 70069982.

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 28996007 - 2⁴ = 28995991 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 (28996001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46007 + ... + 46632.

It is an arithmetic number, because the mean of its divisors is an integer number (7272240).

Almost surely, 2^28996007 is an apocalyptic number.

28996007 is a deficient number, since it is larger than the sum of its proper divisors (92953).

28996007 is an equidigital number, since it uses as much as digits as its factorization.

28996007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92952.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 28996007 is about 5384.7940536292. The cubic root of 28996007 is about 307.2175810465.

The spelling of 28996007 in words is "twenty-eight million, nine hundred ninety-six thousand, seven".