7946905 has 8 divisors (see below), whose sum is σ = 10097352. Its totient is φ = 5983488.

The previous prime is 7946903. The next prime is 7946909. The reversal of 7946905 is 5096497.

It can be written as a sum of positive squares in 4 ways, for example, as 196249 + 7750656 = 443^2 + 2784^2 .

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 7946905 - 2¹ = 7946903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7946903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46662 + ... + 46831.

It is an arithmetic number, because the mean of its divisors is an integer number (1262169).

Almost surely, 2^7946905 is an apocalyptic number.

It is an amenable number.

7946905 is a deficient number, since it is larger than the sum of its proper divisors (2150447).

7946905 is a wasteful number, since it uses less digits than its factorization.

7946905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93515.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 7946905 is about 2819.0255408563. The cubic root of 7946905 is about 199.5565591946.

The spelling of 7946905 in words is "seven million, nine hundred forty-six thousand, nine hundred five".