1390479 has 8 divisors (see below), whose sum is σ = 1877760. Its totient is φ = 915096.

The previous prime is 1390471. The next prime is 1390483. The reversal of 1390479 is 9740931.

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

It is not a de Polignac number, because 1390479 - 2³ = 1390471 is a prime.

1390479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390471) 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 7 ways as a sum of consecutive naturals, for example, 2697 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (234720).

2^1390479 is an apocalyptic number.

1390479 is a deficient number, since it is larger than the sum of its proper divisors (487281).

1390479 is an equidigital number, since it uses as much as digits as its factorization.

1390479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1390479 is about 1179.1857360060. The cubic root of 1390479 is about 111.6147210190.

The spelling of 1390479 in words is "one million, three hundred ninety thousand, four hundred seventy-nine".