8170656913 has 4 divisors (see below), whose sum is σ = 8176909680. Its totient is φ = 8164404148.

The previous prime is 8170656899. The next prime is 8170656917. The reversal of 8170656913 is 3196560718.

It is a happy number.

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 8170656913 - 2⁹ = 8170656401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8170656917) 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, 3124423 + ... + 3127036.

It is an arithmetic number, because the mean of its divisors is an integer number (2044227420).

Almost surely, 2^8170656913 is an apocalyptic number.

It is an amenable number.

8170656913 is a deficient number, since it is larger than the sum of its proper divisors (6252767).

8170656913 is a wasteful number, since it uses less digits than its factorization.

8170656913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252766.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 8170656913 is about 90391.6860834004. The cubic root of 8170656913 is about 2014.1214668336.

The spelling of 8170656913 in words is "eight billion, one hundred seventy million, six hundred fifty-six thousand, nine hundred thirteen".