764082161 has 4 divisors (see below), whose sum is σ = 764142912. Its totient is φ = 764021412.

The previous prime is 764082133. The next prime is 764082173. The reversal of 764082161 is 161280467.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 764082161 - 2⁶ = 764082097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764082101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3701 + ... + 39266.

It is an arithmetic number, because the mean of its divisors is an integer number (191035728).

Almost surely, 2^764082161 is an apocalyptic number.

It is an amenable number.

764082161 is a deficient number, since it is larger than the sum of its proper divisors (60751).

764082161 is a wasteful number, since it uses less digits than its factorization.

764082161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60750.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 764082161 is about 27642.0361225435. The cubic root of 764082161 is about 914.2115141874.

The spelling of 764082161 in words is "seven hundred sixty-four million, eighty-two thousand, one hundred sixty-one".