614444641 has 2 divisors, whose sum is σ = 614444642. Its totient is φ = 614444640.

The previous prime is 614444639. The next prime is 614444647. The reversal of 614444641 is 146444416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585446416 + 28998225 = 24196^2 + 5385^2 .

It is a cyclic number.

It is not a de Polignac number, because 614444641 - 2¹ = 614444639 is a prime.

Together with 614444639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 614444597 and 614444606.

It is not a weakly prime, because it can be changed into another prime (614444647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307222320 + 307222321.

It is an arithmetic number, because the mean of its divisors is an integer number (307222321).

Almost surely, 2^614444641 is an apocalyptic number.

It is an amenable number.

614444641 is a deficient number, since it is larger than the sum of its proper divisors (1).

614444641 is an equidigital number, since it uses as much as digits as its factorization.

614444641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 34.

The square root of 614444641 is about 24787.9938881709. The cubic root of 614444641 is about 850.1474443184.

The spelling of 614444641 in words is "six hundred fourteen million, four hundred forty-four thousand, six hundred forty-one".