7601681 has 2 divisors, whose sum is σ = 7601682. Its totient is φ = 7601680.

The previous prime is 7601651. The next prime is 7601689. The reversal of 7601681 is 1861067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5683456 + 1918225 = 2384^2 + 1385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7601681 is a prime.

It is a super-2 number, since 2×7601681² = 115571108051522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7601689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3800840 + 3800841.

It is an arithmetic number, because the mean of its divisors is an integer number (3800841).

Almost surely, 2^7601681 is an apocalyptic number.

It is an amenable number.

7601681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7601681 is an equidigital number, since it uses as much as digits as its factorization.

7601681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 7601681 is about 2757.1146149553. The cubic root of 7601681 is about 196.6240090698.

The spelling of 7601681 in words is "seven million, six hundred one thousand, six hundred eighty-one".