3967779673 has 16 divisors (see below), whose sum is σ = 4683575232. Its totient is φ = 3313800000.

The previous prime is 3967779659. The next prime is 3967779689. The reversal of 3967779673 is 3769777693.

It is a cyclic number.

It is not a de Polignac number, because 3967779673 - 2²¹ = 3965682521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3967779643) 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 15 ways as a sum of consecutive naturals, for example, 35578 + ... + 95923.

It is an arithmetic number, because the mean of its divisors is an integer number (292723452).

Almost surely, 2^3967779673 is an apocalyptic number.

It is an amenable number.

3967779673 is a deficient number, since it is larger than the sum of its proper divisors (715795559).

3967779673 is a wasteful number, since it uses less digits than its factorization.

3967779673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131736.

The product of its digits is 63011844, while the sum is 64.

The square root of 3967779673 is about 62990.3141205059. The cubic root of 3967779673 is about 1583.1273412335.

The spelling of 3967779673 in words is "three billion, nine hundred sixty-seven million, seven hundred seventy-nine thousand, six hundred seventy-three".