1079861779 has 2 divisors, whose sum is σ = 1079861780. Its totient is φ = 1079861778.

The previous prime is 1079861773. The next prime is 1079861821. The reversal of 1079861779 is 9771689701.

It is a weak prime.

It is an emirp because it is prime and its reverse (9771689701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1079861779 - 2²³ = 1071473171 is a prime.

It is a super-2 number, since 2×1079861779² = 2332202923490089682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1079861773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539930889 + 539930890.

It is an arithmetic number, because the mean of its divisors is an integer number (539930890).

Almost surely, 2^1079861779 is an apocalyptic number.

1079861779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1079861779 is an equidigital number, since it uses as much as digits as its factorization.

1079861779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 55.

The square root of 1079861779 is about 32861.2504174750. The cubic root of 1079861779 is about 1025.9417967710.

The spelling of 1079861779 in words is "one billion, seventy-nine million, eight hundred sixty-one thousand, seven hundred seventy-nine".