397361099 has 2 divisors, whose sum is σ = 397361100. Its totient is φ = 397361098.

The previous prime is 397361071. The next prime is 397361101. The reversal of 397361099 is 990163793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397361099 - 2¹² = 397357003 is a prime.

Together with 397361101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (397361599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198680549 + 198680550.

It is an arithmetic number, because the mean of its divisors is an integer number (198680550).

Almost surely, 2^397361099 is an apocalyptic number.

397361099 is a deficient number, since it is larger than the sum of its proper divisors (1).

397361099 is an equidigital number, since it uses as much as digits as its factorization.

397361099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 397361099 is about 19933.9183052404. The cubic root of 397361099 is about 735.1824243692.

The spelling of 397361099 in words is "three hundred ninety-seven million, three hundred sixty-one thousand, ninety-nine".