344421731 has 2 divisors, whose sum is σ = 344421732. Its totient is φ = 344421730.

The previous prime is 344421713. The next prime is 344421739. The reversal of 344421731 is 137124443.

Together with previous prime (344421713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344421731 - 2²² = 340227427 is a prime.

It is a super-2 number, since 2×344421731² = 237252657570072722, 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 = 344421694 and 344421703.

It is not a weakly prime, because it can be changed into another prime (344421739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172210865 + 172210866.

It is an arithmetic number, because the mean of its divisors is an integer number (172210866).

Almost surely, 2^344421731 is an apocalyptic number.

344421731 is a deficient number, since it is larger than the sum of its proper divisors (1).

344421731 is an equidigital number, since it uses as much as digits as its factorization.

344421731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

The square root of 344421731 is about 18558.6026144212. The cubic root of 344421731 is about 700.9658307199.

The spelling of 344421731 in words is "three hundred forty-four million, four hundred twenty-one thousand, seven hundred thirty-one".