343448989 has 4 divisors (see below), whose sum is σ = 369868156. Its totient is φ = 317029824.

The previous prime is 343448983. The next prime is 343449017. The reversal of 343448989 is 989844343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17935225 + 325513764 = 4235^2 + 18042^2 .

It is a cyclic number.

It is not a de Polignac number, because 343448989 - 2¹⁵ = 343416221 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 (343448983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13209564 + ... + 13209589.

It is an arithmetic number, because the mean of its divisors is an integer number (92467039).

Almost surely, 2^343448989 is an apocalyptic number.

It is an amenable number.

343448989 is a deficient number, since it is larger than the sum of its proper divisors (26419167).

343448989 is a wasteful number, since it uses less digits than its factorization.

343448989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26419166.

The product of its digits is 2985984, while the sum is 52.

The square root of 343448989 is about 18532.3767768735. The cubic root of 343448989 is about 700.3053015188.

The spelling of 343448989 in words is "three hundred forty-three million, four hundred forty-eight thousand, nine hundred eighty-nine".