1580479 has 2 divisors, whose sum is σ = 1580480. Its totient is φ = 1580478.

The previous prime is 1580461. The next prime is 1580483. The reversal of 1580479 is 9740851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1580479 - 2⁷ = 1580351 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1580419) 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 as a sum of consecutive naturals, namely, 790239 + 790240.

It is an arithmetic number, because the mean of its divisors is an integer number (790240).

2^1580479 is an apocalyptic number.

1580479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1580479 is an equidigital number, since it uses as much as digits as its factorization.

1580479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1580479 is about 1257.1710305285. The cubic root of 1580479 is about 116.4830972549.

The spelling of 1580479 in words is "one million, five hundred eighty thousand, four hundred seventy-nine".