63416491 has 2 divisors, whose sum is σ = 63416492. Its totient is φ = 63416490.

The previous prime is 63416459. The next prime is 63416501. The reversal of 63416491 is 19461436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63416491 - 2⁵ = 63416459 is a prime.

It is not a weakly prime, because it can be changed into another prime (63416411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31708245 + 31708246.

It is an arithmetic number, because the mean of its divisors is an integer number (31708246).

Almost surely, 2^63416491 is an apocalyptic number.

63416491 is a deficient number, since it is larger than the sum of its proper divisors (1).

63416491 is an equidigital number, since it uses as much as digits as its factorization.

63416491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 63416491 is about 7963.4471807126. The cubic root of 63416491 is about 398.7806429480.

The spelling of 63416491 in words is "sixty-three million, four hundred sixteen thousand, four hundred ninety-one".