396861737 has 8 divisors (see below), whose sum is σ = 400679136. Its totient is φ = 393057952.

The previous prime is 396861733. The next prime is 396861743. The reversal of 396861737 is 737168693.

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 396861737 - 2² = 396861733 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396861733) 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, 60878 + ... + 67080.

It is an arithmetic number, because the mean of its divisors is an integer number (50084892).

Almost surely, 2^396861737 is an apocalyptic number.

It is an amenable number.

396861737 is a deficient number, since it is larger than the sum of its proper divisors (3817399).

396861737 is a wasteful number, since it uses less digits than its factorization.

396861737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807.

The product of its digits is 1143072, while the sum is 50.

The square root of 396861737 is about 19921.3889325017. The cubic root of 396861737 is about 734.8743283988.

The spelling of 396861737 in words is "three hundred ninety-six million, eight hundred sixty-one thousand, seven hundred thirty-seven".