63378733 has 8 divisors (see below), whose sum is σ = 69854400. Its totient is φ = 57022080.

The previous prime is 63378713. The next prime is 63378739. The reversal of 63378733 is 33787336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63378733 - 2²¹ = 61281581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63378739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28633 + ... + 30766.

It is an arithmetic number, because the mean of its divisors is an integer number (8731800).

Almost surely, 2^63378733 is an apocalyptic number.

It is an amenable number.

63378733 is a deficient number, since it is larger than the sum of its proper divisors (6475667).

63378733 is a wasteful number, since it uses less digits than its factorization.

63378733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59507.

The product of its digits is 190512, while the sum is 40.

The square root of 63378733 is about 7961.0761207264. The cubic root of 63378733 is about 398.7014829451.

The spelling of 63378733 in words is "sixty-three million, three hundred seventy-eight thousand, seven hundred thirty-three".