397143366737 has 8 divisors (see below), whose sum is σ = 442440886440. Its totient is φ = 353952708480.

The previous prime is 397143366731. The next prime is 397143366743. The reversal of 397143366737 is 737663341793.

It is an interprime number because it is at equal distance from previous prime (397143366731) and next prime (397143366743).

It can be written as a sum of positive squares in 4 ways, for example, as 33095250241 + 364048116496 = 181921^2 + 603364^2 .

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 397143366737 - 2⁶ = 397143366673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397143366731) 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, 526714964 + ... + 526715717.

It is an arithmetic number, because the mean of its divisors is an integer number (55305110805).

Almost surely, 2^397143366737 is an apocalyptic number.

It is an amenable number.

397143366737 is a deficient number, since it is larger than the sum of its proper divisors (45297519703).

397143366737 is a wasteful number, since it uses less digits than its factorization.

397143366737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053430723.

The product of its digits is 36006768, while the sum is 59.

The spelling of 397143366737 in words is "three hundred ninety-seven billion, one hundred forty-three million, three hundred sixty-six thousand, seven hundred thirty-seven".