1579645849 has 4 divisors (see below), whose sum is σ = 1583814160. Its totient is φ = 1575477540.

The previous prime is 1579645799. The next prime is 1579645891. The reversal of 1579645849 is 9485469751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1579645849 - 2¹⁵ = 1579613081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1579645793 and 1579645802.

It is not an unprimeable number, because it can be changed into a prime (1579645349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083587 + ... + 2084344.

It is an arithmetic number, because the mean of its divisors is an integer number (395953540).

Almost surely, 2^1579645849 is an apocalyptic number.

It is an amenable number.

1579645849 is a deficient number, since it is larger than the sum of its proper divisors (4168311).

1579645849 is an equidigital number, since it uses as much as digits as its factorization.

1579645849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168310.

The product of its digits is 10886400, while the sum is 58.

The square root of 1579645849 is about 39744.7587613763. The cubic root of 1579645849 is about 1164.6262559891.

The spelling of 1579645849 in words is "one billion, five hundred seventy-nine million, six hundred forty-five thousand, eight hundred forty-nine".