7930945 has 12 divisors (see below), whose sum is σ = 10461780. Its totient is φ = 5767520.

The previous prime is 7930943. The next prime is 7931003. The reversal of 7930945 is 5490397.

It can be written as a sum of positive squares in 2 ways, for example, as 2944656 + 4986289 = 1716^2 + 2233^2 .

It is not a de Polignac number, because 7930945 - 2¹ = 7930943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7930943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5950 + ... + 7159.

It is an arithmetic number, because the mean of its divisors is an integer number (871815).

Almost surely, 2^7930945 is an apocalyptic number.

It is an amenable number.

7930945 is a deficient number, since it is larger than the sum of its proper divisors (2530835).

7930945 is a wasteful number, since it uses less digits than its factorization.

7930945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13136 (or 13125 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 7930945 is about 2816.1933527370. The cubic root of 7930945 is about 199.4228779190.

The spelling of 7930945 in words is "seven million, nine hundred thirty thousand, nine hundred forty-five".