63294391 has 2 divisors, whose sum is σ = 63294392. Its totient is φ = 63294390.

The previous prime is 63294379. The next prime is 63294463. The reversal of 63294391 is 19349236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63294391 - 2¹⁵ = 63261623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63294391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63294311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31647195 + 31647196.

It is an arithmetic number, because the mean of its divisors is an integer number (31647196).

Almost surely, 2^63294391 is an apocalyptic number.

63294391 is a deficient number, since it is larger than the sum of its proper divisors (1).

63294391 is an equidigital number, since it uses as much as digits as its factorization.

63294391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 63294391 is about 7955.7772090475. Note that the first 3 decimals coincide. The cubic root of 63294391 is about 398.5245455269.

The spelling of 63294391 in words is "sixty-three million, two hundred ninety-four thousand, three hundred ninety-one".