346491213 has 4 divisors (see below), whose sum is σ = 461988288. Its totient is φ = 230994140.

The previous prime is 346491209. The next prime is 346491227. The reversal of 346491213 is 312194643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 346491213 - 2² = 346491209 is a prime.

It is a super-2 number, since 2×346491213² = 240112321372422738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346491203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57748533 + ... + 57748538.

It is an arithmetic number, because the mean of its divisors is an integer number (115497072).

Almost surely, 2^346491213 is an apocalyptic number.

It is an amenable number.

346491213 is a deficient number, since it is larger than the sum of its proper divisors (115497075).

346491213 is a wasteful number, since it uses less digits than its factorization.

346491213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115497074.

The product of its digits is 15552, while the sum is 33.

The square root of 346491213 is about 18614.2744419437. The cubic root of 346491213 is about 702.3669622229.

The spelling of 346491213 in words is "three hundred forty-six million, four hundred ninety-one thousand, two hundred thirteen".