349170487 has 2 divisors, whose sum is σ = 349170488. Its totient is φ = 349170486.

The previous prime is 349170457. The next prime is 349170499. The reversal of 349170487 is 784071943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 349170487 - 2²³ = 340781879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349170427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174585243 + 174585244.

It is an arithmetic number, because the mean of its divisors is an integer number (174585244).

Almost surely, 2^349170487 is an apocalyptic number.

349170487 is a deficient number, since it is larger than the sum of its proper divisors (1).

349170487 is an equidigital number, since it uses as much as digits as its factorization.

349170487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 349170487 is about 18686.1041150904. The cubic root of 349170487 is about 704.1726874657.

The spelling of 349170487 in words is "three hundred forty-nine million, one hundred seventy thousand, four hundred eighty-seven".