63914969 has 2 divisors, whose sum is σ = 63914970. Its totient is φ = 63914968.

The previous prime is 63914923. The next prime is 63915011. The reversal of 63914969 is 96941936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61418569 + 2496400 = 7837^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 63914969 - 2²⁰ = 62866393 is a prime.

It is a super-2 number, since 2×63914969² = 8170246524541922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (63914069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31957484 + 31957485.

It is an arithmetic number, because the mean of its divisors is an integer number (31957485).

Almost surely, 2^63914969 is an apocalyptic number.

It is an amenable number.

63914969 is a deficient number, since it is larger than the sum of its proper divisors (1).

63914969 is an equidigital number, since it uses as much as digits as its factorization.

63914969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 63914969 is about 7994.6837961235. The cubic root of 63914969 is about 399.8227735719.

The spelling of 63914969 in words is "sixty-three million, nine hundred fourteen thousand, nine hundred sixty-nine".