343422731 has 2 divisors, whose sum is σ = 343422732. Its totient is φ = 343422730.

The previous prime is 343422721. The next prime is 343422791. The reversal of 343422731 is 137224343.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343422731 is a prime.

It is a super-2 number, since 2×343422731² = 235878344334996722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 343422694 and 343422703.

It is not a weakly prime, because it can be changed into another prime (343422721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171711365 + 171711366.

It is an arithmetic number, because the mean of its divisors is an integer number (171711366).

Almost surely, 2^343422731 is an apocalyptic number.

343422731 is a deficient number, since it is larger than the sum of its proper divisors (1).

343422731 is an equidigital number, since it uses as much as digits as its factorization.

343422731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 343422731 is about 18531.6683274874. The cubic root of 343422731 is about 700.2874540501.

It can be divided in two parts, 34342 and 2731, that added together give a palindrome (37073).

The spelling of 343422731 in words is "three hundred forty-three million, four hundred twenty-two thousand, seven hundred thirty-one".