63617473 has 2 divisors, whose sum is σ = 63617474. Its totient is φ = 63617472.

The previous prime is 63617443. The next prime is 63617483. The reversal of 63617473 is 37471636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 25573249 = 6168^2 + 5057^2 .

It is a cyclic number.

It is not a de Polignac number, because 63617473 - 2⁵ = 63617441 is a prime.

It is not a weakly prime, because it can be changed into another prime (63617423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31808736 + 31808737.

It is an arithmetic number, because the mean of its divisors is an integer number (31808737).

Almost surely, 2^63617473 is an apocalyptic number.

It is an amenable number.

63617473 is a deficient number, since it is larger than the sum of its proper divisors (1).

63617473 is an equidigital number, since it uses as much as digits as its factorization.

63617473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 37.

The square root of 63617473 is about 7976.0562309954. The cubic root of 63617473 is about 399.2014757082.

The spelling of 63617473 in words is "sixty-three million, six hundred seventeen thousand, four hundred seventy-three".