764161 has 8 divisors (see below), whose sum is σ = 826880. Its totient is φ = 703728.

The previous prime is 764149. The next prime is 764171. The reversal of 764161 is 161467.

It is a happy number.

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 764161 - 2⁹ = 763649 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (764111) 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, 160 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (103360).

2⁷⁶⁴¹⁶¹ is an apocalyptic number.

It is an amenable number.

764161 is a deficient number, since it is larger than the sum of its proper divisors (62719).

764161 is a wasteful number, since it uses less digits than its factorization.

764161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its digits is 1008, while the sum is 25.

The square root of 764161 is about 874.1630282733. The cubic root of 764161 is about 91.4242956287.

The spelling of 764161 in words is "seven hundred sixty-four thousand, one hundred sixty-one".