385475687 has 2 divisors, whose sum is σ = 385475688. Its totient is φ = 385475686.

The previous prime is 385475683. The next prime is 385475711. The reversal of 385475687 is 786574583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385475687 - 2² = 385475683 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385475683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192737843 + 192737844.

It is an arithmetic number, because the mean of its divisors is an integer number (192737844).

Almost surely, 2^385475687 is an apocalyptic number.

385475687 is a deficient number, since it is larger than the sum of its proper divisors (1).

385475687 is an equidigital number, since it uses as much as digits as its factorization.

385475687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 53.

The square root of 385475687 is about 19633.5347556165. The cubic root of 385475687 is about 727.7781238017.

The spelling of 385475687 in words is "three hundred eighty-five million, four hundred seventy-five thousand, six hundred eighty-seven".