764671469 has 4 divisors (see below), whose sum is σ = 776084544. Its totient is φ = 753258396.

The previous prime is 764671463. The next prime is 764671477. The reversal of 764671469 is 964176467.

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: 964176467 = 149 ⋅6470983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764671469 is a prime.

It is a super-2 number, since 2×764671469² = 1169444911005235922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764671463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5706437 + ... + 5706570.

It is an arithmetic number, because the mean of its divisors is an integer number (194021136).

Almost surely, 2^764671469 is an apocalyptic number.

It is an amenable number.

764671469 is a deficient number, since it is larger than the sum of its proper divisors (11413075).

764671469 is a wasteful number, since it uses less digits than its factorization.

764671469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413074.

The product of its digits is 1524096, while the sum is 50.

The square root of 764671469 is about 27652.6937024226. The cubic root of 764671469 is about 914.4464861748.

The spelling of 764671469 in words is "seven hundred sixty-four million, six hundred seventy-one thousand, four hundred sixty-nine".