3961677867 has 16 divisors (see below), whose sum is σ = 6150746880. Its totient is φ = 2221101792.

The previous prime is 3961677857. The next prime is 3961677877. The reversal of 3961677867 is 7687761693.

It is an interprime number because it is at equal distance from previous prime (3961677857) and next prime (3961677877).

It is not a de Polignac number, because 3961677867 - 2⁴ = 3961677851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3961677867.

It is not an unprimeable number, because it can be changed into a prime (3961677817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1778617 + ... + 1780842.

It is an arithmetic number, because the mean of its divisors is an integer number (384421680).

Almost surely, 2^3961677867 is an apocalyptic number.

3961677867 is a deficient number, since it is larger than the sum of its proper divisors (2189069013).

3961677867 is a wasteful number, since it uses less digits than its factorization.

3961677867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559522.

The product of its digits is 16003008, while the sum is 60.

The square root of 3961677867 is about 62941.8610068053. The cubic root of 3961677867 is about 1582.3153932635.

The spelling of 3961677867 in words is "three billion, nine hundred sixty-one million, six hundred seventy-seven thousand, eight hundred sixty-seven".