348662789 has 2 divisors, whose sum is σ = 348662790. Its totient is φ = 348662788.

The previous prime is 348662771. The next prime is 348662837. The reversal of 348662789 is 987266843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195720100 + 152942689 = 13990^2 + 12367^2 .

It is an emirp because it is prime and its reverse (987266843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348662789 - 2¹² = 348658693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348662789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348662759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174331394 + 174331395.

It is an arithmetic number, because the mean of its divisors is an integer number (174331395).

Almost surely, 2^348662789 is an apocalyptic number.

It is an amenable number.

348662789 is a deficient number, since it is larger than the sum of its proper divisors (1).

348662789 is an equidigital number, since it uses as much as digits as its factorization.

348662789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 53.

The square root of 348662789 is about 18672.5142656258. The cubic root of 348662789 is about 703.8312301245.

The spelling of 348662789 in words is "three hundred forty-eight million, six hundred sixty-two thousand, seven hundred eighty-nine".