1385677 has 4 divisors (see below), whose sum is σ = 1419516. Its totient is φ = 1351840.

The previous prime is 1385647. The next prime is 1385693. The reversal of 1385677 is 7765831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7765831 = 2411 ⋅3221.

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 1121481 = 514^2 + 1059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385677 is a prime.

It is a super-3 number, since 3×1385677³ = 7981918333926851199, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16858 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (354879).

2^1385677 is an apocalyptic number.

It is an amenable number.

1385677 is a deficient number, since it is larger than the sum of its proper divisors (33839).

1385677 is an equidigital number, since it uses as much as digits as its factorization.

1385677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33838.

The product of its digits is 35280, while the sum is 37.

The square root of 1385677 is about 1177.1478241920. The cubic root of 1385677 is about 111.4860861937.

It can be divided in two parts, 138567 and 7, that multiplied together give a palindrome (969969).

The spelling of 1385677 in words is "one million, three hundred eighty-five thousand, six hundred seventy-seven".