388314769 has 2 divisors, whose sum is σ = 388314770. Its totient is φ = 388314768.

The previous prime is 388314767. The next prime is 388314779. The reversal of 388314769 is 967413883.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366224769 + 22090000 = 19137^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 388314769 - 2¹ = 388314767 is a prime.

It is a super-2 number, since 2×388314769² = 301576719647046722, which contains 22 as substring.

Together with 388314767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (388314763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194157384 + 194157385.

It is an arithmetic number, because the mean of its divisors is an integer number (194157385).

Almost surely, 2^388314769 is an apocalyptic number.

It is an amenable number.

388314769 is a deficient number, since it is larger than the sum of its proper divisors (1).

388314769 is an equidigital number, since it uses as much as digits as its factorization.

388314769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 388314769 is about 19705.7039711856. The cubic root of 388314769 is about 729.5604841643.

The spelling of 388314769 in words is "three hundred eighty-eight million, three hundred fourteen thousand, seven hundred sixty-nine".