607646261 has 2 divisors, whose sum is σ = 607646262. Its totient is φ = 607646260.

The previous prime is 607646257. The next prime is 607646297. The reversal of 607646261 is 162646706.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600544036 + 7102225 = 24506^2 + 2665^2 .

It is a cyclic number.

It is not a de Polignac number, because 607646261 - 2² = 607646257 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (607646461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303823130 + 303823131.

It is an arithmetic number, because the mean of its divisors is an integer number (303823131).

Almost surely, 2^607646261 is an apocalyptic number.

It is an amenable number.

607646261 is a deficient number, since it is larger than the sum of its proper divisors (1).

607646261 is an equidigital number, since it uses as much as digits as its factorization.

607646261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 607646261 is about 24650.4819628339. The cubic root of 607646261 is about 847.0003893640. Note that the first 3 decimals are identical.

The spelling of 607646261 in words is "six hundred seven million, six hundred forty-six thousand, two hundred sixty-one".