343310661 has 12 divisors (see below), whose sum is σ = 496068300. Its totient is φ = 228792960.

The previous prime is 343310641. The next prime is 343310687. The reversal of 343310661 is 166013343.

343310661 is a `hidden beast` number, since 343 + 310 + 6 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97416900 + 245893761 = 9870^2 + 15681^2 .

It is not a de Polignac number, because 343310661 - 2⁷ = 343310533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343310641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31731 + ... + 41151.

It is an arithmetic number, because the mean of its divisors is an integer number (41339025).

Almost surely, 2^343310661 is an apocalyptic number.

It is an amenable number.

343310661 is a deficient number, since it is larger than the sum of its proper divisors (152757639).

343310661 is a wasteful number, since it uses less digits than its factorization.

343310661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13476 (or 13473 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 343310661 is about 18528.6443378894. The cubic root of 343310661 is about 700.2112702427.

The spelling of 343310661 in words is "three hundred forty-three million, three hundred ten thousand, six hundred sixty-one".