1386461 has 4 divisors (see below), whose sum is σ = 1434300. Its totient is φ = 1338624.

The previous prime is 1386457. The next prime is 1386479. The reversal of 1386461 is 1646831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1646831 = 673 ⋅2447.

It can be written as a sum of positive squares in 2 ways, for example, as 348100 + 1038361 = 590^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386461 - 2² = 1386457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 47809 = 1386461 / (1 + 3 + 8 + 6 + 4 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23876 + ... + 23933.

It is an arithmetic number, because the mean of its divisors is an integer number (358575).

2^1386461 is an apocalyptic number.

It is an amenable number.

1386461 is a deficient number, since it is larger than the sum of its proper divisors (47839).

1386461 is an equidigital number, since it uses as much as digits as its factorization.

1386461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47838.

The product of its digits is 3456, while the sum is 29.

The square root of 1386461 is about 1177.4807854059. The cubic root of 1386461 is about 111.5071080751.

The spelling of 1386461 in words is "one million, three hundred eighty-six thousand, four hundred sixty-one".