9676434943 has 4 divisors (see below), whose sum is σ = 11058782800. Its totient is φ = 8294087088.

The previous prime is 9676434907. The next prime is 9676434947. The reversal of 9676434943 is 3494346769.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3494346769 = 59113².

It is a de Polignac number, because none of the positive numbers 2^k-9676434943 is a prime.

It is a super-2 number, since 2×9676434943² (a number of 21 digits) 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 (9676434947) 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, 691173918 + ... + 691173931.

It is an arithmetic number, because the mean of its divisors is an integer number (2764695700).

Almost surely, 2^9676434943 is an apocalyptic number.

9676434943 is a deficient number, since it is larger than the sum of its proper divisors (1382347857).

9676434943 is a wasteful number, since it uses less digits than its factorization.

9676434943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382347856.

The product of its digits is 11757312, while the sum is 55.

The square root of 9676434943 is about 98368.8718192905. The cubic root of 9676434943 is about 2130.9428069230.

The spelling of 9676434943 in words is "nine billion, six hundred seventy-six million, four hundred thirty-four thousand, nine hundred forty-three".