387695069 has 2 divisors, whose sum is σ = 387695070. Its totient is φ = 387695068.

The previous prime is 387695051. The next prime is 387695117. The reversal of 387695069 is 960596783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317302969 + 70392100 = 17813^2 + 8390^2 .

It is a cyclic number.

It is not a de Polignac number, because 387695069 - 2¹² = 387690973 is a prime.

It is a super-2 number, since 2×387695069² = 300614933053829522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387695069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387695029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193847534 + 193847535.

It is an arithmetic number, because the mean of its divisors is an integer number (193847535).

Almost surely, 2^387695069 is an apocalyptic number.

It is an amenable number.

387695069 is a deficient number, since it is larger than the sum of its proper divisors (1).

387695069 is an equidigital number, since it uses as much as digits as its factorization.

387695069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 387695069 is about 19689.9738191802. The cubic root of 387695069 is about 729.1721828996.

The spelling of 387695069 in words is "three hundred eighty-seven million, six hundred ninety-five thousand, sixty-nine".