1385671 has 6 divisors (see below), whose sum is σ = 1611960. Its totient is φ = 1187676.

The previous prime is 1385647. The next prime is 1385693. The reversal of 1385671 is 1765831.

It is not a de Polignac number, because 1385671 - 2¹³ = 1377479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14091 + ... + 14188.

It is an arithmetic number, because the mean of its divisors is an integer number (268660).

2^1385671 is an apocalyptic number.

1385671 is a deficient number, since it is larger than the sum of its proper divisors (226289).

1385671 is an equidigital number, since it uses as much as digits as its factorization.

1385671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28293 (or 28286 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 1385671 is about 1177.1452756563. The cubic root of 1385671 is about 111.4859252814.

The spelling of 1385671 in words is "one million, three hundred eighty-five thousand, six hundred seventy-one".