1392071 has 4 divisors (see below), whose sum is σ = 1399944. Its totient is φ = 1384200.

The previous prime is 1392007. The next prime is 1392089. The reversal of 1392071 is 1702931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1392071 - 2⁶ = 1392007 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 (1392271) 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, 3665 + ... + 4026.

It is an arithmetic number, because the mean of its divisors is an integer number (349986).

2^1392071 is an apocalyptic number.

1392071 is a deficient number, since it is larger than the sum of its proper divisors (7873).

1392071 is an equidigital number, since it uses as much as digits as its factorization.

1392071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1392071 is about 1179.8605849845. The cubic root of 1392071 is about 111.6573017567.

The spelling of 1392071 in words is "one million, three hundred ninety-two thousand, seventy-one".