396961740617 has 8 divisors (see below), whose sum is σ = 427515205320. Its totient is φ = 366410839680.

The previous prime is 396961740583. The next prime is 396961740631. The reversal of 396961740617 is 716047169693.

It can be written as a sum of positive squares in 4 ways, for example, as 150155475001 + 246806265616 = 387499^2 + 496796^2 .

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 396961740617 - 2¹⁴ = 396961724233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396961740647) 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, 313142 + ... + 944447.

It is an arithmetic number, because the mean of its divisors is an integer number (53439400665).

Almost surely, 2^396961740617 is an apocalyptic number.

It is an amenable number.

396961740617 is a deficient number, since it is larger than the sum of its proper divisors (30553464703).

396961740617 is a wasteful number, since it uses less digits than its factorization.

396961740617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281883.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 396961740617 in words is "three hundred ninety-six billion, nine hundred sixty-one million, seven hundred forty thousand, six hundred seventeen".