7681343 has 4 divisors (see below), whose sum is σ = 7826328. Its totient is φ = 7536360.

The previous prime is 7681337. The next prime is 7681357. The reversal of 7681343 is 3431867.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7681343 - 2¹⁶ = 7615807 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 (7681363) 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, 72413 + ... + 72518.

It is an arithmetic number, because the mean of its divisors is an integer number (1956582).

Almost surely, 2^7681343 is an apocalyptic number.

7681343 is a deficient number, since it is larger than the sum of its proper divisors (144985).

7681343 is a wasteful number, since it uses less digits than its factorization.

7681343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144984.

The product of its digits is 12096, while the sum is 32.

The square root of 7681343 is about 2771.5235882092. The cubic root of 7681343 is about 197.3084657026.

The spelling of 7681343 in words is "seven million, six hundred eighty-one thousand, three hundred forty-three".