346355397 has 12 divisors (see below), whose sum is σ = 500558604. Its totient is φ = 230780160.

The previous prime is 346355393. The next prime is 346355419. The reversal of 346355397 is 793553643.

346355397 is a `hidden beast` number, since 3 + 4 + 6 + 3 + 553 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 135699201 + 210656196 = 11649^2 + 14514^2 .

It is not a de Polignac number, because 346355397 - 2² = 346355393 is a prime.

It is a super-2 number, since 2×346355397² = 239924122062055218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346355393) 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, 9483 + ... + 27975.

It is an arithmetic number, because the mean of its divisors is an integer number (41713217).

Almost surely, 2^346355397 is an apocalyptic number.

It is an amenable number.

346355397 is a deficient number, since it is larger than the sum of its proper divisors (154203207).

346355397 is a wasteful number, since it uses less digits than its factorization.

346355397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20580 (or 20577 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 45.

The square root of 346355397 is about 18610.6259163952. The cubic root of 346355397 is about 702.2751800610.

The spelling of 346355397 in words is "three hundred forty-six million, three hundred fifty-five thousand, three hundred ninety-seven".