348279689 has 2 divisors, whose sum is σ = 348279690. Its totient is φ = 348279688.

The previous prime is 348279677. The next prime is 348279719. The reversal of 348279689 is 986972843.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198584464 + 149695225 = 14092^2 + 12235^2 .

It is a cyclic number.

It is not a de Polignac number, because 348279689 - 2⁸ = 348279433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (348279989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174139844 + 174139845.

It is an arithmetic number, because the mean of its divisors is an integer number (174139845).

Almost surely, 2^348279689 is an apocalyptic number.

It is an amenable number.

348279689 is a deficient number, since it is larger than the sum of its proper divisors (1).

348279689 is an equidigital number, since it uses as much as digits as its factorization.

348279689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 56.

The square root of 348279689 is about 18662.2530526193. The cubic root of 348279689 is about 703.5733529151.

The spelling of 348279689 in words is "three hundred forty-eight million, two hundred seventy-nine thousand, six hundred eighty-nine".