1392479 has 8 divisors (see below), whose sum is σ = 1527888. Its totient is φ = 1258560.

The previous prime is 1392473. The next prime is 1392481. The reversal of 1392479 is 9742931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1392479 - 2⁴ = 1392463 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 (1392473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2819 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (190986).

2^1392479 is an apocalyptic number.

1392479 is a deficient number, since it is larger than the sum of its proper divisors (135409).

1392479 is a wasteful number, since it uses less digits than its factorization.

1392479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 13608, while the sum is 35.

The square root of 1392479 is about 1180.0334741015. The cubic root of 1392479 is about 111.6682091814.

The spelling of 1392479 in words is "one million, three hundred ninety-two thousand, four hundred seventy-nine".