63345393 has 12 divisors (see below), whose sum is σ = 91569348. Its totient is φ = 42197760.

The previous prime is 63345379. The next prime is 63345397. The reversal of 63345393 is 39354336.

It can be written as a sum of positive squares in 2 ways, for example, as 47568609 + 15776784 = 6897^2 + 3972^2 .

It is not a de Polignac number, because 63345393 - 2⁴ = 63345377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63345397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17821 + ... + 21077.

It is an arithmetic number, because the mean of its divisors is an integer number (7630779).

Almost surely, 2^63345393 is an apocalyptic number.

It is an amenable number.

63345393 is a deficient number, since it is larger than the sum of its proper divisors (28223955).

63345393 is a wasteful number, since it uses less digits than its factorization.

63345393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424 (or 5421 counting only the distinct ones).

The product of its digits is 87480, while the sum is 36.

The square root of 63345393 is about 7958.9819072542. The cubic root of 63345393 is about 398.6315591797.

The spelling of 63345393 in words is "sixty-three million, three hundred forty-five thousand, three hundred ninety-three".