63983009 has 2 divisors, whose sum is σ = 63983010. Its totient is φ = 63983008.

The previous prime is 63982991. The next prime is 63983021. The reversal of 63983009 is 90038936.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63760225 + 222784 = 7985^2 + 472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63983009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63983099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31991504 + 31991505.

It is an arithmetic number, because the mean of its divisors is an integer number (31991505).

Almost surely, 2^63983009 is an apocalyptic number.

It is an amenable number.

63983009 is a deficient number, since it is larger than the sum of its proper divisors (1).

63983009 is an equidigital number, since it uses as much as digits as its factorization.

63983009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 63983009 is about 7998.9379920087. The cubic root of 63983009 is about 399.9645989503.

The spelling of 63983009 in words is "sixty-three million, nine hundred eighty-three thousand, nine".