3994759667 has 4 divisors (see below), whose sum is σ = 3994891776. Its totient is φ = 3994627560.

The previous prime is 3994759661. The next prime is 3994759687. The reversal of 3994759667 is 7669574993.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7669574993 = 71 ⋅108022183.

It is a cyclic number.

It is not a de Polignac number, because 3994759667 - 2⁸ = 3994759411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994759661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4238 + ... + 89484.

It is an arithmetic number, because the mean of its divisors is an integer number (998722944).

Almost surely, 2^3994759667 is an apocalyptic number.

3994759667 is a deficient number, since it is larger than the sum of its proper divisors (132109).

3994759667 is an equidigital number, since it uses as much as digits as its factorization.

3994759667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132108.

The product of its digits is 77157360, while the sum is 65.

The square root of 3994759667 is about 63204.1111558418. Note that the first 4 decimals coincide. The cubic root of 3994759667 is about 1586.7075398507.

The spelling of 3994759667 in words is "three billion, nine hundred ninety-four million, seven hundred fifty-nine thousand, six hundred sixty-seven".