1386073 has 4 divisors (see below), whose sum is σ = 1492708. Its totient is φ = 1279440.

The previous prime is 1386053. The next prime is 1386079. The reversal of 1386073 is 3706831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3706831 = 761 ⋅4871.

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 788544 = 773^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386073 - 2⁹ = 1385561 is a prime.

It is a super-2 number, since 2×1386073² = 3842396722658, which contains 22 as substring.

It is a Duffinian number.

1386073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1386079) 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, 53298 + ... + 53323.

It is an arithmetic number, because the mean of its divisors is an integer number (373177).

2^1386073 is an apocalyptic number.

1386073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1386073 is a deficient number, since it is larger than the sum of its proper divisors (106635).

1386073 is a wasteful number, since it uses less digits than its factorization.

1386073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106634.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1386073 is about 1177.3160153502. The cubic root of 1386073 is about 111.4967053797.

The spelling of 1386073 in words is "one million, three hundred eighty-six thousand, seventy-three".