63345407 has 4 divisors (see below), whose sum is σ = 64818600. Its totient is φ = 61872216.

The previous prime is 63345397. The next prime is 63345421. The reversal of 63345407 is 70454336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63345407 - 2⁶ = 63345343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63345467) 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 in 3 ways as a sum of consecutive naturals, for example, 736532 + ... + 736617.

It is an arithmetic number, because the mean of its divisors is an integer number (16204650).

Almost surely, 2^63345407 is an apocalyptic number.

63345407 is a deficient number, since it is larger than the sum of its proper divisors (1473193).

63345407 is a wasteful number, since it uses less digits than its factorization.

63345407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473192.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 63345407 is about 7958.9827867636. The cubic root of 63345407 is about 398.6315885469.

The spelling of 63345407 in words is "sixty-three million, three hundred forty-five thousand, four hundred seven".