634197343 has 6 divisors (see below), whose sum is σ = 686734584. Its totient is φ = 585412776.

The previous prime is 634197337. The next prime is 634197373. The reversal of 634197343 is 343791436.

It is a happy number.

It is not a de Polignac number, because 634197343 - 2⁹ = 634196831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634197296 and 634197305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634197323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1876155 + ... + 1876492.

It is an arithmetic number, because the mean of its divisors is an integer number (114455764).

Almost surely, 2^634197343 is an apocalyptic number.

634197343 is a deficient number, since it is larger than the sum of its proper divisors (52537241).

634197343 is a wasteful number, since it uses less digits than its factorization.

634197343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752673 (or 3752660 counting only the distinct ones).

The product of its digits is 163296, while the sum is 40.

The square root of 634197343 is about 25183.2750650109. The cubic root of 634197343 is about 859.1614970365.

It can be divided in two parts, 6341 and 97343, that added together give a square (103684 = 322²).

The spelling of 634197343 in words is "six hundred thirty-four million, one hundred ninety-seven thousand, three hundred forty-three".