1386242623 has 4 divisors (see below), whose sum is σ = 1386805648. Its totient is φ = 1385679600.

The previous prime is 1386242609. The next prime is 1386242657. The reversal of 1386242623 is 3262426831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3262426831 = 15307 ⋅213133.

It is a cyclic number.

It is not a de Polignac number, because 1386242623 - 2²¹ = 1384145471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386242023) 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, 277803 + ... + 282748.

It is an arithmetic number, because the mean of its divisors is an integer number (346701412).

Almost surely, 2^1386242623 is an apocalyptic number.

1386242623 is a deficient number, since it is larger than the sum of its proper divisors (563025).

1386242623 is an equidigital number, since it uses as much as digits as its factorization.

1386242623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563024.

The product of its digits is 82944, while the sum is 37.

The square root of 1386242623 is about 37232.2793151319. The cubic root of 1386242623 is about 1115.0125339271.

The spelling of 1386242623 in words is "one billion, three hundred eighty-six million, two hundred forty-two thousand, six hundred twenty-three".