396861698 has 8 divisors (see below), whose sum is σ = 596749260. Its totient is φ = 197945280.

The previous prime is 396861691. The next prime is 396861733. The reversal of 396861698 is 896168693.

It can be written as a sum of positive squares in 2 ways, for example, as 396288649 + 573049 = 19907^2 + 757^2 .

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

It is not an unprimeable number, because it can be changed into a prime (396861691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241763 + ... + 243398.

Almost surely, 2^396861698 is an apocalyptic number.

396861698 is a deficient number, since it is larger than the sum of its proper divisors (199887562).

396861698 is a wasteful number, since it uses less digits than its factorization.

396861698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485572.

The product of its digits is 3359232, while the sum is 56.

The square root of 396861698 is about 19921.3879536542. The cubic root of 396861698 is about 734.8743043265.

The spelling of 396861698 in words is "three hundred ninety-six million, eight hundred sixty-one thousand, six hundred ninety-eight".