63617441 has 2 divisors, whose sum is σ = 63617442. Its totient is φ = 63617440.

The previous prime is 63617429. The next prime is 63617443. The reversal of 63617441 is 14471636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 4389025 = 7696^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63617441 is a prime.

Together with 63617443, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3763715 and since 63617441 and 3763715 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 63617398 and 63617407.

It is not a weakly prime, because it can be changed into another prime (63617443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31808720 + 31808721.

It is an arithmetic number, because the mean of its divisors is an integer number (31808721).

Almost surely, 2^63617441 is an apocalyptic number.

It is an amenable number.

63617441 is a deficient number, since it is larger than the sum of its proper divisors (1).

63617441 is an equidigital number, since it uses as much as digits as its factorization.

63617441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 63617441 is about 7976.0542249912. The cubic root of 63617441 is about 399.2014087745.

The spelling of 63617441 in words is "sixty-three million, six hundred seventeen thousand, four hundred forty-one".