349356947 has 2 divisors, whose sum is σ = 349356948. Its totient is φ = 349356946.

The previous prime is 349356937. The next prime is 349356967. The reversal of 349356947 is 749653943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349356947 - 2⁶ = 349356883 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 349356895 and 349356904.

It is not a weakly prime, because it can be changed into another prime (349356937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174678473 + 174678474.

It is an arithmetic number, because the mean of its divisors is an integer number (174678474).

Almost surely, 2^349356947 is an apocalyptic number.

349356947 is a deficient number, since it is larger than the sum of its proper divisors (1).

349356947 is an equidigital number, since it uses as much as digits as its factorization.

349356947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 50.

The square root of 349356947 is about 18691.0927181907. The cubic root of 349356947 is about 704.2980098887.

It can be divided in two parts, 3 and 49356947, that multiplied together give a palindrome (148070841).

The spelling of 349356947 in words is "three hundred forty-nine million, three hundred fifty-six thousand, nine hundred forty-seven".