3942766943 has 4 divisors (see below), whose sum is σ = 3973812480. Its totient is φ = 3911721408.

The previous prime is 3942766909. The next prime is 3942766951. The reversal of 3942766943 is 3496672493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3496672493 = 2789 ⋅1253737.

It is a cyclic number.

It is not a de Polignac number, because 3942766943 - 2¹⁶ = 3942701407 is a prime.

It is a super-2 number, since 2×3942766943² = 31090822333627130498, 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 (3942766963) 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, 15522578 + ... + 15522831.

It is an arithmetic number, because the mean of its divisors is an integer number (993453120).

Almost surely, 2^3942766943 is an apocalyptic number.

3942766943 is a deficient number, since it is larger than the sum of its proper divisors (31045537).

3942766943 is a wasteful number, since it uses less digits than its factorization.

3942766943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31045536.

The product of its digits is 5878656, while the sum is 53.

The square root of 3942766943 is about 62791.4559713342. The cubic root of 3942766943 is about 1579.7936683777.

The spelling of 3942766943 in words is "three billion, nine hundred forty-two million, seven hundred sixty-six thousand, nine hundred forty-three".