63742813 has 8 divisors (see below), whose sum is σ = 65506496. Its totient is φ = 61992000.

The previous prime is 63742807. The next prime is 63742829. The reversal of 63742813 is 31824736.

It is a happy number.

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 63742813 - 2²⁵ = 30188381 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 (63742013) 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, 7288 + ... + 13438.

It is an arithmetic number, because the mean of its divisors is an integer number (8188312).

Almost surely, 2^63742813 is an apocalyptic number.

It is an amenable number.

63742813 is a deficient number, since it is larger than the sum of its proper divisors (1763683).

63742813 is a wasteful number, since it uses less digits than its factorization.

63742813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435.

The product of its digits is 24192, while the sum is 34.

The square root of 63742813 is about 7983.9096312521. The cubic root of 63742813 is about 399.4634744225.

The spelling of 63742813 in words is "sixty-three million, seven hundred forty-two thousand, eight hundred thirteen".