7636397 has 2 divisors, whose sum is σ = 7636398. Its totient is φ = 7636396.

The previous prime is 7636381. The next prime is 7636403. The reversal of 7636397 is 7936367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4605316 + 3031081 = 2146^2 + 1741^2 .

It is an emirp because it is prime and its reverse (7936367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7636397 - 2⁴ = 7636381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7636337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3818198 + 3818199.

It is an arithmetic number, because the mean of its divisors is an integer number (3818199).

Almost surely, 2^7636397 is an apocalyptic number.

It is an amenable number.

7636397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7636397 is an equidigital number, since it uses as much as digits as its factorization.

7636397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 41.

The square root of 7636397 is about 2763.4031555312. The cubic root of 7636397 is about 196.9228742901.

The spelling of 7636397 in words is "seven million, six hundred thirty-six thousand, three hundred ninety-seven".