247601 has 2 divisors, whose sum is σ = 247602. Its totient is φ = 247600.

The previous prime is 247591. The next prime is 247603. The reversal of 247601 is 106742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226576 + 21025 = 476^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 247601 - 2¹⁰ = 246577 is a prime.

It is a super-2 number, since 2×247601² = 122612510402, which contains 22 as substring.

Together with 247603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (247603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123800 + 123801.

It is an arithmetic number, because the mean of its divisors is an integer number (123801).

2²⁴⁷⁶⁰¹ is an apocalyptic number.

It is an amenable number.

247601 is a deficient number, since it is larger than the sum of its proper divisors (1).

247601 is an equidigital number, since it uses as much as digits as its factorization.

247601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 247601 is about 497.5952170188. The cubic root of 247601 is about 62.7939011211.

It can be divided in two parts, 247 and 601, that added together give a palindrome (848).

The spelling of 247601 in words is "two hundred forty-seven thousand, six hundred one".