1397052347 has 2 divisors, whose sum is σ = 1397052348. Its totient is φ = 1397052346.

The previous prime is 1397052341. The next prime is 1397052359. The reversal of 1397052347 is 7432507931.

It is a weak prime.

It is an emirp because it is prime and its reverse (7432507931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1397052347 - 2¹² = 1397048251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1397052341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698526173 + 698526174.

It is an arithmetic number, because the mean of its divisors is an integer number (698526174).

Almost surely, 2^1397052347 is an apocalyptic number.

1397052347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397052347 is an equidigital number, since it uses as much as digits as its factorization.

1397052347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 1397052347 is about 37377.1634424016. The cubic root of 1397052347 is about 1117.9032697504.

The spelling of 1397052347 in words is "one billion, three hundred ninety-seven million, fifty-two thousand, three hundred forty-seven".