385276669 has 2 divisors, whose sum is σ = 385276670. Its totient is φ = 385276668.

The previous prime is 385276609. The next prime is 385276673. The reversal of 385276669 is 966672583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351112644 + 34164025 = 18738^2 + 5845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385276669 is a prime.

It is a super-2 number, since 2×385276669² = 296876223351471122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385276609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192638334 + 192638335.

It is an arithmetic number, because the mean of its divisors is an integer number (192638335).

Almost surely, 2^385276669 is an apocalyptic number.

385276669 is the 11333-rd hex number.

It is an amenable number.

385276669 is a deficient number, since it is larger than the sum of its proper divisors (1).

385276669 is an equidigital number, since it uses as much as digits as its factorization.

385276669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The square root of 385276669 is about 19628.4657831426. The cubic root of 385276669 is about 727.6528535746.

The spelling of 385276669 in words is "three hundred eighty-five million, two hundred seventy-six thousand, six hundred sixty-nine".