397616339 has 2 divisors, whose sum is σ = 397616340. Its totient is φ = 397616338.

The previous prime is 397616279. The next prime is 397616389. The reversal of 397616339 is 933616793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397616339 - 2²⁰ = 396567763 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 397616293 and 397616302.

It is not a weakly prime, because it can be changed into another prime (397616389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198808169 + 198808170.

It is an arithmetic number, because the mean of its divisors is an integer number (198808170).

Almost surely, 2^397616339 is an apocalyptic number.

397616339 is a deficient number, since it is larger than the sum of its proper divisors (1).

397616339 is an equidigital number, since it uses as much as digits as its factorization.

397616339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 47.

The square root of 397616339 is about 19940.3194307413. The cubic root of 397616339 is about 735.3398024643.

The spelling of 397616339 in words is "three hundred ninety-seven million, six hundred sixteen thousand, three hundred thirty-nine".