63245969 has 2 divisors, whose sum is σ = 63245970. Its totient is φ = 63245968.

The previous prime is 63245957. The next prime is 63245971. The reversal of 63245969 is 96954236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62995969 + 250000 = 7937^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 63245969 - 2⁴ = 63245953 is a prime.

It is a super-2 number, since 2×63245969² = 8000105189497922, which contains 22 as substring.

Together with 63245971, 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 (63245909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31622984 + 31622985.

It is an arithmetic number, because the mean of its divisors is an integer number (31622985).

Almost surely, 2^63245969 is an apocalyptic number.

It is an amenable number.

63245969 is a deficient number, since it is larger than the sum of its proper divisors (1).

63245969 is an equidigital number, since it uses as much as digits as its factorization.

63245969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 63245969 is about 7952.7334294568. The cubic root of 63245969 is about 398.4228920821.

The spelling of 63245969 in words is "sixty-three million, two hundred forty-five thousand, nine hundred sixty-nine".