764087161 has 8 divisors (see below), whose sum is σ = 783561600. Its totient is φ = 744854880.

The previous prime is 764087153. The next prime is 764087171. The reversal of 764087161 is 161780467.

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 764087161 - 2³ = 764087153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764087141) 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, 54141 + ... + 66778.

It is an arithmetic number, because the mean of its divisors is an integer number (97945200).

Almost surely, 2^764087161 is an apocalyptic number.

764087161 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

764087161 is a deficient number, since it is larger than the sum of its proper divisors (19474439).

764087161 is a wasteful number, since it uses less digits than its factorization.

764087161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121079.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 764087161 is about 27642.1265643582. The cubic root of 764087161 is about 914.2135083218.

The spelling of 764087161 in words is "seven hundred sixty-four million, eighty-seven thousand, one hundred sixty-one".