343197855 has 192 divisors, whose sum is σ = 842849280. Its totient is φ = 124416000.

The previous prime is 343197847. The next prime is 343197857. The reversal of 343197855 is 558791343.

It is not a de Polignac number, because 343197855 - 2³ = 343197847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 343197855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343197857) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 855655 + ... + 856055.

It is an arithmetic number, because the mean of its divisors is an integer number (4389840).

Almost surely, 2^343197855 is an apocalyptic number.

343197855 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

343197855 is an abundant number, since it is smaller than the sum of its proper divisors (499651425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343197855 is a wasteful number, since it uses less digits than its factorization.

343197855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 459 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 343197855 is about 18525.5999902837. The cubic root of 343197855 is about 700.1345693666.

The spelling of 343197855 in words is "three hundred forty-three million, one hundred ninety-seven thousand, eight hundred fifty-five".