64763943 has 8 divisors (see below), whose sum is σ = 86408688. Its totient is φ = 43147584.

The previous prime is 64763903. The next prime is 64763971. The reversal of 64763943 is 34936746.

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

It is not a de Polignac number, because 64763943 - 2⁸ = 64763687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64763895 and 64763904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64763903) 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, 1030 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (10801086).

Almost surely, 2^64763943 is an apocalyptic number.

64763943 is a deficient number, since it is larger than the sum of its proper divisors (21644745).

64763943 is a wasteful number, since it uses less digits than its factorization.

64763943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14193.

The product of its digits is 326592, while the sum is 42.

The square root of 64763943 is about 8047.6047989448. The cubic root of 64763943 is about 401.5852570175.

The spelling of 64763943 in words is "sixty-four million, seven hundred sixty-three thousand, nine hundred forty-three".