607681 has 2 divisors, whose sum is σ = 607682. Its totient is φ = 607680.

The previous prime is 607669. The next prime is 607697. The reversal of 607681 is 186706.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600625 + 7056 = 775^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 607681 - 2¹⁵ = 574913 is a prime.

It is a super-2 number, since 2×607681² = 738552395522, which contains 22 as substring.

607681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (607081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303840 + 303841.

It is an arithmetic number, because the mean of its divisors is an integer number (303841).

2⁶⁰⁷⁶⁸¹ is an apocalyptic number.

It is an amenable number.

607681 is a deficient number, since it is larger than the sum of its proper divisors (1).

607681 is an equidigital number, since it uses as much as digits as its factorization.

607681 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 28.

The square root of 607681 is about 779.5389663128. The cubic root of 607681 is about 84.7016529997.

The spelling of 607681 in words is "six hundred seven thousand, six hundred eighty-one".