63680743 has 12 divisors (see below), whose sum is σ = 74763480. Its totient is φ = 54078192.

The previous prime is 63680741. The next prime is 63680779. The reversal of 63680743 is 34708636.

It is a happy number.

It is not a de Polignac number, because 63680743 - 2¹ = 63680741 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 (63680741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621 + ... + 11302.

It is an arithmetic number, because the mean of its divisors is an integer number (6230290).

Almost surely, 2^63680743 is an apocalyptic number.

63680743 is a deficient number, since it is larger than the sum of its proper divisors (11082737).

63680743 is a wasteful number, since it uses less digits than its factorization.

63680743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12046 (or 12039 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 63680743 is about 7980.0214911991. The cubic root of 63680743 is about 399.3337722174. Note that the first 3 decimals are identical.

The spelling of 63680743 in words is "sixty-three million, six hundred eighty thousand, seven hundred forty-three".