346771389 has 24 divisors (see below), whose sum is σ = 497978560. Its totient is φ = 214562304.

The previous prime is 346771351. The next prime is 346771409. The reversal of 346771389 is 983177643.

It is not a de Polignac number, because 346771389 - 2⁸ = 346771133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346771319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60552 + ... + 66030.

Almost surely, 2^346771389 is an apocalyptic number.

It is an amenable number.

346771389 is a deficient number, since it is larger than the sum of its proper divisors (151207171).

346771389 is a wasteful number, since it uses less digits than its factorization.

346771389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589 (or 5572 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 346771389 is about 18621.7987584444. The cubic root of 346771389 is about 702.5562246932.

The spelling of 346771389 in words is "three hundred forty-six million, seven hundred seventy-one thousand, three hundred eighty-nine".