349726547 has 2 divisors, whose sum is σ = 349726548. Its totient is φ = 349726546.

The previous prime is 349726543. The next prime is 349726561. The reversal of 349726547 is 745627943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349726547 - 2² = 349726543 is a prime.

It is equal to p_18789536 and since 349726547 and 18789536 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (349726543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174863273 + 174863274.

It is an arithmetic number, because the mean of its divisors is an integer number (174863274).

Almost surely, 2^349726547 is an apocalyptic number.

349726547 is a deficient number, since it is larger than the sum of its proper divisors (1).

349726547 is an equidigital number, since it uses as much as digits as its factorization.

349726547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 47.

The square root of 349726547 is about 18700.9771669825. The cubic root of 349726547 is about 704.5462915801.

The spelling of 349726547 in words is "three hundred forty-nine million, seven hundred twenty-six thousand, five hundred forty-seven".