64733743 has 4 divisors (see below), whose sum is σ = 64790568. Its totient is φ = 64676920.

The previous prime is 64733731. The next prime is 64733759. The reversal of 64733743 is 34733746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34733746 = 2 ⋅17366873.

It is a cyclic number.

It is not a de Polignac number, because 64733743 - 2⁹ = 64733231 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 (64733783) 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, 26668 + ... + 28993.

It is an arithmetic number, because the mean of its divisors is an integer number (16197642).

Almost surely, 2^64733743 is an apocalyptic number.

64733743 is a deficient number, since it is larger than the sum of its proper divisors (56825).

64733743 is a wasteful number, since it uses less digits than its factorization.

64733743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56824.

The product of its digits is 127008, while the sum is 37.

The square root of 64733743 is about 8045.7282454729. The cubic root of 64733743 is about 401.5228263923.

The spelling of 64733743 in words is "sixty-four million, seven hundred thirty-three thousand, seven hundred forty-three".