1385459687 has 2 divisors, whose sum is σ = 1385459688. Its totient is φ = 1385459686.

The previous prime is 1385459681. The next prime is 1385459753. The reversal of 1385459687 is 7869545831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1385459687 - 2⁸ = 1385459431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385459681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692729843 + 692729844.

It is an arithmetic number, because the mean of its divisors is an integer number (692729844).

Almost surely, 2^1385459687 is an apocalyptic number.

1385459687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385459687 is an equidigital number, since it uses as much as digits as its factorization.

1385459687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 56.

The square root of 1385459687 is about 37221.7636202263. The cubic root of 1385459687 is about 1114.8025784111.

The spelling of 1385459687 in words is "one billion, three hundred eighty-five million, four hundred fifty-nine thousand, six hundred eighty-seven".