676154813 has 2 divisors, whose sum is σ = 676154814. Its totient is φ = 676154812.

The previous prime is 676154771. The next prime is 676154819. The reversal of 676154813 is 318451676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468852409 + 207302404 = 21653^2 + 14398^2 .

It is a cyclic number.

It is not a de Polignac number, because 676154813 - 2¹⁰ = 676153789 is a prime.

It is a super-2 number, since 2×676154813² = 914370662286129938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676154819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338077406 + 338077407.

It is an arithmetic number, because the mean of its divisors is an integer number (338077407).

Almost surely, 2^676154813 is an apocalyptic number.

It is an amenable number.

676154813 is a deficient number, since it is larger than the sum of its proper divisors (1).

676154813 is an equidigital number, since it uses as much as digits as its factorization.

676154813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 676154813 is about 26002.9770026434. The cubic root of 676154813 is about 877.7052873706.

The spelling of 676154813 in words is "six hundred seventy-six million, one hundred fifty-four thousand, eight hundred thirteen".