1386764 has 12 divisors (see below), whose sum is σ = 2456664. Its totient is φ = 684864.

The previous prime is 1386757. The next prime is 1386767. The reversal of 1386764 is 4676831.

It is a super-2 number, since 2×1386764² = 3846228783392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386767) 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, 1757 + ... + 2420.

It is an arithmetic number, because the mean of its divisors is an integer number (204722).

2^1386764 is an apocalyptic number.

It is an amenable number.

1386764 is a deficient number, since it is larger than the sum of its proper divisors (1069900).

1386764 is a wasteful number, since it uses less digits than its factorization.

1386764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264 (or 4262 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 1386764 is about 1177.6094428969. The cubic root of 1386764 is about 111.5152304800.

It can be divided in two parts, 13867 and 64, that added together give a palindrome (13931).

The spelling of 1386764 in words is "one million, three hundred eighty-six thousand, seven hundred sixty-four".