7864117 has 2 divisors, whose sum is σ = 7864118. Its totient is φ = 7864116.

The previous prime is 7864093. The next prime is 7864121. The reversal of 7864117 is 7114687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6105841 + 1758276 = 2471^2 + 1326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7864117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7864127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932058 + 3932059.

It is an arithmetic number, because the mean of its divisors is an integer number (3932059).

Almost surely, 2^7864117 is an apocalyptic number.

It is an amenable number.

7864117 is a deficient number, since it is larger than the sum of its proper divisors (1).

7864117 is an equidigital number, since it uses as much as digits as its factorization.

7864117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 34.

The square root of 7864117 is about 2804.3033002869. The cubic root of 7864117 is about 198.8611692981.

The spelling of 7864117 in words is "seven million, eight hundred sixty-four thousand, one hundred seventeen".