63457399 has 2 divisors, whose sum is σ = 63457400. Its totient is φ = 63457398.

The previous prime is 63457393. The next prime is 63457409. The reversal of 63457399 is 99375436.

63457399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63457399 - 2¹³ = 63449207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63457393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31728699 + 31728700.

It is an arithmetic number, because the mean of its divisors is an integer number (31728700).

Almost surely, 2^63457399 is an apocalyptic number.

63457399 is a deficient number, since it is larger than the sum of its proper divisors (1).

63457399 is an equidigital number, since it uses as much as digits as its factorization.

63457399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 46.

The square root of 63457399 is about 7966.0152523078. The cubic root of 63457399 is about 398.8663715012.

The spelling of 63457399 in words is "sixty-three million, four hundred fifty-seven thousand, three hundred ninety-nine".