64002743 has 8 divisors (see below), whose sum is σ = 73269120. Its totient is φ = 54767160.

The previous prime is 64002727. The next prime is 64002749. The reversal of 64002743 is 34720046.

It is a happy number.

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

It is not a de Polignac number, because 64002743 - 2⁴ = 64002727 is a prime.

It is a super-2 number, since 2×64002743² = 8192702223048098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64002749) 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, 3053 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (9158640).

Almost surely, 2^64002743 is an apocalyptic number.

64002743 is a deficient number, since it is larger than the sum of its proper divisors (9266377).

64002743 is a wasteful number, since it uses less digits than its factorization.

64002743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 64002743 is about 8000.1714356631. The cubic root of 64002743 is about 400.0057145017.

Adding to 64002743 its reverse (34720046), we get a palindrome (98722789).

The spelling of 64002743 in words is "sixty-four million, two thousand, seven hundred forty-three".