63874453 has 2 divisors, whose sum is σ = 63874454. Its totient is φ = 63874452.

The previous prime is 63874451. The next prime is 63874463. The reversal of 63874453 is 35447836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62615569 + 1258884 = 7913^2 + 1122^2 .

It is a cyclic number.

It is not a de Polignac number, because 63874453 - 2¹ = 63874451 is a prime.

Together with 63874451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63874451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31937226 + 31937227.

It is an arithmetic number, because the mean of its divisors is an integer number (31937227).

Almost surely, 2^63874453 is an apocalyptic number.

It is an amenable number.

63874453 is a deficient number, since it is larger than the sum of its proper divisors (1).

63874453 is an equidigital number, since it uses as much as digits as its factorization.

63874453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 63874453 is about 7992.1494605644. The cubic root of 63874453 is about 399.7382725342.

The spelling of 63874453 in words is "sixty-three million, eight hundred seventy-four thousand, four hundred fifty-three".