63474689 has 2 divisors, whose sum is σ = 63474690. Its totient is φ = 63474688.

The previous prime is 63474679. The next prime is 63474743. The reversal of 63474689 is 98647436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63473089 + 1600 = 7967^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 63474689 - 2⁴ = 63474673 is a prime.

It is a super-2 number, since 2×63474689² = 8058072287293442, 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 (63474659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31737344 + 31737345.

It is an arithmetic number, because the mean of its divisors is an integer number (31737345).

Almost surely, 2^63474689 is an apocalyptic number.

It is an amenable number.

63474689 is a deficient number, since it is larger than the sum of its proper divisors (1).

63474689 is an equidigital number, since it uses as much as digits as its factorization.

63474689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 63474689 is about 7967.1004135758. The cubic root of 63474689 is about 398.9025940873.

The spelling of 63474689 in words is "sixty-three million, four hundred seventy-four thousand, six hundred eighty-nine".