7634681 has 2 divisors, whose sum is σ = 7634682. Its totient is φ = 7634680.

The previous prime is 7634677. The next prime is 7634719. The reversal of 7634681 is 1864367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5216656 + 2418025 = 2284^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 7634681 - 2² = 7634677 is a prime.

It is a super-2 number, since 2×7634681² = 116576707943522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7634281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817340 + 3817341.

It is an arithmetic number, because the mean of its divisors is an integer number (3817341).

Almost surely, 2^7634681 is an apocalyptic number.

It is an amenable number.

7634681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7634681 is an equidigital number, since it uses as much as digits as its factorization.

7634681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 7634681 is about 2763.0926513601. The cubic root of 7634681 is about 196.9081227885.

The spelling of 7634681 in words is "seven million, six hundred thirty-four thousand, six hundred eighty-one".