8196406977 has 32 divisors (see below), whose sum is σ = 12061131264. Its totient is φ = 4909708800.

The previous prime is 8196406969. The next prime is 8196406987. The reversal of 8196406977 is 7796046918.

It is not a de Polignac number, because 8196406977 - 2³ = 8196406969 is a prime.

It is a super-2 number, since 2×8196406977² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8196406987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3491118 + ... + 3493464.

It is an arithmetic number, because the mean of its divisors is an integer number (376910352).

Almost surely, 2^8196406977 is an apocalyptic number.

It is an amenable number.

8196406977 is a deficient number, since it is larger than the sum of its proper divisors (3864724287).

8196406977 is a wasteful number, since it uses less digits than its factorization.

8196406977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 8196406977 is about 90534.0100569946. The cubic root of 8196406977 is about 2016.2351022094.

The spelling of 8196406977 in words is "eight billion, one hundred ninety-six million, four hundred six thousand, nine hundred seventy-seven".