1079308021 has 6 divisors (see below), whose sum is σ = 1186346966. Its totient is φ = 981189000.

The previous prime is 1079308007. The next prime is 1079308031. The reversal of 1079308021 is 1208039701.

It can be written as a sum of positive squares in only one way, i.e., 1018311921 + 60996100 = 31911^2 + 7810^2 .

It is not a de Polignac number, because 1079308021 - 2¹¹ = 1079305973 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 (1079308001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4459830 + ... + 4460071.

Almost surely, 2^1079308021 is an apocalyptic number.

1079308021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1079308021 is a deficient number, since it is larger than the sum of its proper divisors (107038945).

1079308021 is an equidigital number, since it uses as much as digits as its factorization.

1079308021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919923 (or 8919912 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1079308021 is about 32852.8236381593. The cubic root of 1079308021 is about 1025.7663975893.

The spelling of 1079308021 in words is "one billion, seventy-nine million, three hundred eight thousand, twenty-one".