63419999 has 2 divisors, whose sum is σ = 63420000. Its totient is φ = 63419998.

The previous prime is 63419987. The next prime is 63420011. The reversal of 63419999 is 99991436.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (63419987) and next prime (63420011).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63419999 is a prime.

63419999 is a modest number, since divided by 9999 gives 6341 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63419099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31709999 + 31710000.

It is an arithmetic number, because the mean of its divisors is an integer number (31710000).

Almost surely, 2^63419999 is an apocalyptic number.

63419999 is a deficient number, since it is larger than the sum of its proper divisors (1).

63419999 is an equidigital number, since it uses as much as digits as its factorization.

63419999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 50.

The square root of 63419999 is about 7963.6674340407. The cubic root of 63419999 is about 398.7879959077.

The spelling of 63419999 in words is "sixty-three million, four hundred nineteen thousand, nine hundred ninety-nine".