348837989 has 2 divisors, whose sum is σ = 348837990. Its totient is φ = 348837988.

The previous prime is 348837971. The next prime is 348837991. The reversal of 348837989 is 989738843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346332100 + 2505889 = 18610^2 + 1583^2 .

It is a cyclic number.

It is not a de Polignac number, because 348837989 - 2⁸ = 348837733 is a prime.

Together with 348837991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348837919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174418994 + 174418995.

It is an arithmetic number, because the mean of its divisors is an integer number (174418995).

Almost surely, 2^348837989 is an apocalyptic number.

It is an amenable number.

348837989 is a deficient number, since it is larger than the sum of its proper divisors (1).

348837989 is an equidigital number, since it uses as much as digits as its factorization.

348837989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 59.

The square root of 348837989 is about 18677.2050639275. The cubic root of 348837989 is about 703.9491000616.

The spelling of 348837989 in words is "three hundred forty-eight million, eight hundred thirty-seven thousand, nine hundred eighty-nine".