676808401 has 2 divisors, whose sum is σ = 676808402. Its totient is φ = 676808400.

The previous prime is 676808383. The next prime is 676808417. The reversal of 676808401 is 104808676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666414225 + 10394176 = 25815^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 676808401 - 2¹⁵ = 676775633 is a prime.

It is a super-2 number, since 2×676808401² = 916139223328353602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (676808801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338404200 + 338404201.

It is an arithmetic number, because the mean of its divisors is an integer number (338404201).

Almost surely, 2^676808401 is an apocalyptic number.

It is an amenable number.

676808401 is a deficient number, since it is larger than the sum of its proper divisors (1).

676808401 is an equidigital number, since it uses as much as digits as its factorization.

676808401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 676808401 is about 26015.5415280943. The cubic root of 676808401 is about 877.9880001923.

The spelling of 676808401 in words is "six hundred seventy-six million, eight hundred eight thousand, four hundred one".