7922005 has 32 divisors (see below), whose sum is σ = 12225024. Its totient is φ = 4790016.

The previous prime is 7921999. The next prime is 7922021. The reversal of 7922005 is 5002297.

7922005 = 221² + 222² + ... + 325².

It is not a de Polignac number, because 7922005 - 2⁹ = 7921493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10087 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (382032).

Almost surely, 2^7922005 is an apocalyptic number.

It is an amenable number.

7922005 is a deficient number, since it is larger than the sum of its proper divisors (4303019).

7922005 is a wasteful number, since it uses less digits than its factorization.

7922005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 7922005 is about 2814.6056562154. The cubic root of 7922005 is about 199.3479179221.

The spelling of 7922005 in words is "seven million, nine hundred twenty-two thousand, five".