764161601 has 4 divisors (see below), whose sum is σ = 873327552. Its totient is φ = 654995652.

The previous prime is 764161597. The next prime is 764161603. The reversal of 764161601 is 106161467.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106161467 = 5843 ⋅18169.

It is a cyclic number.

It is not a de Polignac number, because 764161601 - 2² = 764161597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764161603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54582965 + ... + 54582978.

It is an arithmetic number, because the mean of its divisors is an integer number (218331888).

Almost surely, 2^764161601 is an apocalyptic number.

It is an amenable number.

764161601 is a deficient number, since it is larger than the sum of its proper divisors (109165951).

764161601 is a wasteful number, since it uses less digits than its factorization.

764161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109165950.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 764161601 is about 27643.4730270999. The cubic root of 764161601 is about 914.2431959661.

The spelling of 764161601 in words is "seven hundred sixty-four million, one hundred sixty-one thousand, six hundred one".