7956997 has 4 divisors (see below), whose sum is σ = 7964460. Its totient is φ = 7949536.

The previous prime is 7956989. The next prime is 7957013. The reversal of 7956997 is 7996597.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2579236 + 5377761 = 1606^2 + 2319^2 .

It is a cyclic number.

It is not a de Polignac number, because 7956997 - 2³ = 7956989 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 (7956947) 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 3 ways as a sum of consecutive naturals, for example, 1798 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (1991115).

Almost surely, 2^7956997 is an apocalyptic number.

It is an amenable number.

7956997 is a deficient number, since it is larger than the sum of its proper divisors (7463).

7956997 is a wasteful number, since it uses less digits than its factorization.

7956997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462.

The product of its digits is 1071630, while the sum is 52.

The square root of 7956997 is about 2820.8149531651. The cubic root of 7956997 is about 199.6409976388.

The spelling of 7956997 in words is "seven million, nine hundred fifty-six thousand, nine hundred ninety-seven".