1392871 has 4 divisors (see below), whose sum is σ = 1466200. Its totient is φ = 1319544.

The previous prime is 1392851. The next prime is 1392877. The reversal of 1392871 is 1782931.

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 1392871 - 2¹³ = 1384679 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 (1392877) 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, 36636 + ... + 36673.

It is an arithmetic number, because the mean of its divisors is an integer number (366550).

2^1392871 is an apocalyptic number.

1392871 is a deficient number, since it is larger than the sum of its proper divisors (73329).

1392871 is an equidigital number, since it uses as much as digits as its factorization.

1392871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73328.

The product of its digits is 3024, while the sum is 31.

The square root of 1392871 is about 1180.1995593966. The cubic root of 1392871 is about 111.6786868573.

The spelling of 1392871 in words is "one million, three hundred ninety-two thousand, eight hundred seventy-one".