8396379661 has 4 divisors (see below), whose sum is σ = 8838294400. Its totient is φ = 7954464924.

The previous prime is 8396379569. The next prime is 8396379689. The reversal of 8396379661 is 1669736938.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8396379661 - 2²⁷ = 8262161933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8396379596 and 8396379605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8396379161) 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, 220957341 + ... + 220957378.

It is an arithmetic number, because the mean of its divisors is an integer number (2209573600).

Almost surely, 2^8396379661 is an apocalyptic number.

It is an amenable number.

8396379661 is a deficient number, since it is larger than the sum of its proper divisors (441914739).

8396379661 is a wasteful number, since it uses less digits than its factorization.

8396379661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441914738.

The product of its digits is 8817984, while the sum is 58.

The square root of 8396379661 is about 91631.7612021072. The cubic root of 8396379661 is about 2032.5006320315.

The spelling of 8396379661 in words is "eight billion, three hundred ninety-six million, three hundred seventy-nine thousand, six hundred sixty-one".