348786731 has 2 divisors, whose sum is σ = 348786732. Its totient is φ = 348786730.

The previous prime is 348786709. The next prime is 348786733. The reversal of 348786731 is 137687843.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 348786731 - 2¹⁴ = 348770347 is a prime.

It is a super-2 number, since 2×348786731² = 243304367443332722, which contains 22 as substring.

Together with 348786733, 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 (348786733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174393365 + 174393366.

It is an arithmetic number, because the mean of its divisors is an integer number (174393366).

Almost surely, 2^348786731 is an apocalyptic number.

348786731 is a deficient number, since it is larger than the sum of its proper divisors (1).

348786731 is an equidigital number, since it uses as much as digits as its factorization.

348786731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 348786731 is about 18675.8328060625. The cubic root of 348786731 is about 703.9146191167.

The spelling of 348786731 in words is "three hundred forty-eight million, seven hundred eighty-six thousand, seven hundred thirty-one".