1385811 has 12 divisors (see below), whose sum is σ = 2287792. Its totient is φ = 791856.

The previous prime is 1385809. The next prime is 1385827. The reversal of 1385811 is 1185831.

It is not a de Polignac number, because 1385811 - 2¹ = 1385809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10936 + ... + 11061.

2^1385811 is an apocalyptic number.

1385811 is a deficient number, since it is larger than the sum of its proper divisors (901981).

1385811 is a wasteful number, since it uses less digits than its factorization.

1385811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22010 (or 22007 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 1385811 is about 1177.2047400516. The cubic root of 1385811 is about 111.4896797811.

The spelling of 1385811 in words is "one million, three hundred eighty-five thousand, eight hundred eleven".