1385807 has 4 divisors (see below), whose sum is σ = 1388520. Its totient is φ = 1383096.

The previous prime is 1385801. The next prime is 1385809. The reversal of 1385807 is 7085831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7085831 = 29 ⋅244339.

It is a cyclic number.

It is not a de Polignac number, because 1385807 - 2⁶ = 1385743 is a prime.

It is a super-2 number, since 2×1385807² = 3840922082498, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (347130).

2^1385807 is an apocalyptic number.

1385807 is a deficient number, since it is larger than the sum of its proper divisors (2713).

1385807 is an equidigital number, since it uses as much as digits as its factorization.

1385807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1385807 is about 1177.2030411106. The cubic root of 1385807 is about 111.4895725132.

The spelling of 1385807 in words is "one million, three hundred eighty-five thousand, eight hundred seven".