346990605 has 32 divisors (see below), whose sum is σ = 601292160. Its totient is φ = 169854720.

The previous prime is 346990603. The next prime is 346990639. The reversal of 346990605 is 506099643.

It is not a de Polignac number, because 346990605 - 2¹ = 346990603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346990603) 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 31 ways as a sum of consecutive naturals, for example, 29935 + ... + 39875.

It is an arithmetic number, because the mean of its divisors is an integer number (18790380).

Almost surely, 2^346990605 is an apocalyptic number.

It is an amenable number.

346990605 is a deficient number, since it is larger than the sum of its proper divisors (254301555).

346990605 is a wasteful number, since it uses less digits than its factorization.

346990605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 346990605 is about 18627.6838334775. The cubic root of 346990605 is about 702.7042368305.

The spelling of 346990605 in words is "three hundred forty-six million, nine hundred ninety thousand, six hundred five".