63966743 has 8 divisors (see below), whose sum is σ = 64640400. Its totient is φ = 63296640.

The previous prime is 63966739. The next prime is 63966751. The reversal of 63966743 is 34766936.

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 63966743 - 2² = 63966739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63966694 and 63966703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63966043) 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, 48671 + ... + 49967.

It is an arithmetic number, because the mean of its divisors is an integer number (8080050).

Almost surely, 2^63966743 is an apocalyptic number.

63966743 is a deficient number, since it is larger than the sum of its proper divisors (673657).

63966743 is a wasteful number, since it uses less digits than its factorization.

63966743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777.

The product of its digits is 489888, while the sum is 44.

The square root of 63966743 is about 7997.9211674034. The cubic root of 63966743 is about 399.9307025787.

The spelling of 63966743 in words is "sixty-three million, nine hundred sixty-six thousand, seven hundred forty-three".