1077326813 has 4 divisors (see below), whose sum is σ = 1097653788. Its totient is φ = 1056999840.

The previous prime is 1077326801. The next prime is 1077326819. The reversal of 1077326813 is 3186237701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3186237701 = 5659 ⋅563039.

It can be written as a sum of positive squares in 2 ways, for example, as 525922489 + 551404324 = 22933^2 + 23482^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077326813 - 2⁸ = 1077326557 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 (1077326819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10163408 + ... + 10163513.

It is an arithmetic number, because the mean of its divisors is an integer number (274413447).

Almost surely, 2^1077326813 is an apocalyptic number.

It is an amenable number.

1077326813 is a deficient number, since it is larger than the sum of its proper divisors (20326975).

1077326813 is an equidigital number, since it uses as much as digits as its factorization.

1077326813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20326974.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1077326813 is about 32822.6570070127. The cubic root of 1077326813 is about 1025.1383713255.

The spelling of 1077326813 in words is "one billion, seventy-seven million, three hundred twenty-six thousand, eight hundred thirteen".