1319487679 has 8 divisors (see below), whose sum is σ = 1334998368. Its totient is φ = 1304066400.

The previous prime is 1319487677. The next prime is 1319487721. The reversal of 1319487679 is 9767849131.

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 1319487679 - 2¹ = 1319487677 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 (1319487677) 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, 7569 + ... + 51925.

It is an arithmetic number, because the mean of its divisors is an integer number (166874796).

Almost surely, 2^1319487679 is an apocalyptic number.

1319487679 is a deficient number, since it is larger than the sum of its proper divisors (15510689).

1319487679 is a wasteful number, since it uses less digits than its factorization.

1319487679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44705.

The product of its digits is 2286144, while the sum is 55.

The square root of 1319487679 is about 36324.7529792014. The cubic root of 1319487679 is about 1096.8193738605.

The spelling of 1319487679 in words is "one billion, three hundred nineteen million, four hundred eighty-seven thousand, six hundred seventy-nine".