676392197 has 8 divisors (see below), whose sum is σ = 735106680. Its totient is φ = 618632640.

The previous prime is 676392187. The next prime is 676392263. The reversal of 676392197 is 791293676.

It can be written as a sum of positive squares in 4 ways, for example, as 70543201 + 605848996 = 8399^2 + 24614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676392197 - 2⁸ = 676391941 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 (676392137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237254 + ... + 240087.

It is an arithmetic number, because the mean of its divisors is an integer number (91888335).

Almost surely, 2^676392197 is an apocalyptic number.

It is an amenable number.

676392197 is a deficient number, since it is larger than the sum of its proper divisors (58714483).

676392197 is a wasteful number, since it uses less digits than its factorization.

676392197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477463.

The product of its digits is 857304, while the sum is 50.

The square root of 676392197 is about 26007.5411563646. The cubic root of 676392197 is about 877.8079900899.

The spelling of 676392197 in words is "six hundred seventy-six million, three hundred ninety-two thousand, one hundred ninety-seven".