3961677869 has 8 divisors (see below), whose sum is σ = 3988819968. Its totient is φ = 3934560240.

The previous prime is 3961677857. The next prime is 3961677877. The reversal of 3961677869 is 9687761693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3961677869 - 2⁸ = 3961677613 is a prime.

It is a super-2 number, since 2×3961677869² = 31389783075448762322, 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 (3961677469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417164 + ... + 426554.

It is an arithmetic number, because the mean of its divisors is an integer number (498602496).

Almost surely, 2^3961677869 is an apocalyptic number.

It is an amenable number.

3961677869 is a deficient number, since it is larger than the sum of its proper divisors (27142099).

3961677869 is a wasteful number, since it uses less digits than its factorization.

3961677869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235.

The product of its digits is 20575296, while the sum is 62.

The square root of 3961677869 is about 62941.8610226930. The cubic root of 3961677869 is about 1582.3153935298.

The spelling of 3961677869 in words is "three billion, nine hundred sixty-one million, six hundred seventy-seven thousand, eight hundred sixty-nine".