674810401 has 2 divisors, whose sum is σ = 674810402. Its totient is φ = 674810400.

The previous prime is 674810377. The next prime is 674810407. The reversal of 674810401 is 104018476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663114001 + 11696400 = 25751^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 674810401 - 2²³ = 666421793 is a prime.

It is not a weakly prime, because it can be changed into another prime (674810407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337405200 + 337405201.

It is an arithmetic number, because the mean of its divisors is an integer number (337405201).

Almost surely, 2^674810401 is an apocalyptic number.

It is an amenable number.

674810401 is a deficient number, since it is larger than the sum of its proper divisors (1).

674810401 is an equidigital number, since it uses as much as digits as its factorization.

674810401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 674810401 is about 25977.1130228130. The cubic root of 674810401 is about 877.1231817965.

Adding to 674810401 its reverse (104018476), we get a palindrome (778828877).

The spelling of 674810401 in words is "six hundred seventy-four million, eight hundred ten thousand, four hundred one".