63742747 has 4 divisors (see below), whose sum is σ = 63765576. Its totient is φ = 63719920.

The previous prime is 63742733. The next prime is 63742751. The reversal of 63742747 is 74724736.

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 63742747 - 2⁷ = 63742619 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63742247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6529 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (15941394).

Almost surely, 2^63742747 is an apocalyptic number.

63742747 is a deficient number, since it is larger than the sum of its proper divisors (22829).

63742747 is a wasteful number, since it uses less digits than its factorization.

63742747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22828.

The product of its digits is 197568, while the sum is 40.

The square root of 63742747 is about 7983.9054979377. The cubic root of 63742747 is about 399.4633365529.

The spelling of 63742747 in words is "sixty-three million, seven hundred forty-two thousand, seven hundred forty-seven".