397807161323 has 16 divisors (see below), whose sum is σ = 491951443200. Its totient is φ = 316254494880.

The previous prime is 397807161313. The next prime is 397807161329. The reversal of 397807161323 is 323161708793.

It is a cyclic number.

It is not a de Polignac number, because 397807161323 - 2⁸ = 397807161067 is a prime.

It is a super-2 number, since 2×397807161323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397807161329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73204343 + ... + 73209776.

It is an arithmetic number, because the mean of its divisors is an integer number (30746965200).

Almost surely, 2^397807161323 is an apocalyptic number.

397807161323 is a deficient number, since it is larger than the sum of its proper divisors (94144281877).

397807161323 is a wasteful number, since it uses less digits than its factorization.

397807161323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146414162.

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

The spelling of 397807161323 in words is "three hundred ninety-seven billion, eight hundred seven million, one hundred sixty-one thousand, three hundred twenty-three".