1386407 has 4 divisors (see below), whose sum is σ = 1512456. Its totient is φ = 1260360.

The previous prime is 1386383. The next prime is 1386419. The reversal of 1386407 is 7046831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7046831 = 11 ⋅640621.

It is a cyclic number.

It is not a de Polignac number, because 1386407 - 2¹⁰ = 1385383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1386407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386457) 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, 63008 + ... + 63029.

It is an arithmetic number, because the mean of its divisors is an integer number (378114).

2^1386407 is an apocalyptic number.

1386407 is a deficient number, since it is larger than the sum of its proper divisors (126049).

1386407 is a wasteful number, since it uses less digits than its factorization.

1386407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126048.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1386407 is about 1177.4578548721. The cubic root of 1386407 is about 111.5056603935.

The spelling of 1386407 in words is "one million, three hundred eighty-six thousand, four hundred seven".