344435387 has 2 divisors, whose sum is σ = 344435388. Its totient is φ = 344435386.

The previous prime is 344435381. The next prime is 344435417. The reversal of 344435387 is 783534443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344435387 - 2¹² = 344431291 is a prime.

It is not a weakly prime, because it can be changed into another prime (344435381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172217693 + 172217694.

It is an arithmetic number, because the mean of its divisors is an integer number (172217694).

Almost surely, 2^344435387 is an apocalyptic number.

344435387 is a deficient number, since it is larger than the sum of its proper divisors (1).

344435387 is an equidigital number, since it uses as much as digits as its factorization.

344435387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 41.

The square root of 344435387 is about 18558.9705264058. The cubic root of 344435387 is about 700.9750948110.

The spelling of 344435387 in words is "three hundred forty-four million, four hundred thirty-five thousand, three hundred eighty-seven".