397632375337 has 2 divisors, whose sum is σ = 397632375338. Its totient is φ = 397632375336.

The previous prime is 397632375331. The next prime is 397632375341. The reversal of 397632375337 is 733573236793.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375087653136 + 22544722201 = 612444^2 + 150149^2 .

It is a cyclic number.

It is not a de Polignac number, because 397632375337 - 2¹¹ = 397632373289 is a prime.

It is a super-2 number, since 2×397632375337² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397632375331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198816187668 + 198816187669.

It is an arithmetic number, because the mean of its divisors is an integer number (198816187669).

Almost surely, 2^397632375337 is an apocalyptic number.

It is an amenable number.

397632375337 is a deficient number, since it is larger than the sum of its proper divisors (1).

397632375337 is an equidigital number, since it uses as much as digits as its factorization.

397632375337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45008460, while the sum is 58.

The spelling of 397632375337 in words is "three hundred ninety-seven billion, six hundred thirty-two million, three hundred seventy-five thousand, three hundred thirty-seven".