764123669 has 2 divisors, whose sum is σ = 764123670. Its totient is φ = 764123668.

The previous prime is 764123663. The next prime is 764123713. The reversal of 764123669 is 966321467.

764123669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (764123713) can be obtained adding 764123669 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759002500 + 5121169 = 27550^2 + 2263^2 .

It is a cyclic number.

It is not a de Polignac number, because 764123669 - 2⁴ = 764123653 is a prime.

It is a super-2 number, since 2×764123669² = 1167769963052043122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764123663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382061834 + 382061835.

It is an arithmetic number, because the mean of its divisors is an integer number (382061835).

Almost surely, 2^764123669 is an apocalyptic number.

It is an amenable number.

764123669 is a deficient number, since it is larger than the sum of its proper divisors (1).

764123669 is an equidigital number, since it uses as much as digits as its factorization.

764123669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 764123669 is about 27642.7869253446. The cubic root of 764123669 is about 914.2280684300.

The spelling of 764123669 in words is "seven hundred sixty-four million, one hundred twenty-three thousand, six hundred sixty-nine".