346990 has 16 divisors (see below), whose sum is σ = 713952. Its totient is φ = 118944.

The previous prime is 346963. The next prime is 347003. The reversal of 346990 is 99643.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 346990.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409 + ... + 2548.

It is an arithmetic number, because the mean of its divisors is an integer number (44622).

2³⁴⁶⁹⁹⁰ is an apocalyptic number.

346990 is an abundant number, since it is smaller than the sum of its proper divisors (366962).

It is a weird number, because it is abundant, but not a pseudoperfect number.

346990 is a wasteful number, since it uses less digits than its factorization.

346990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 346990 is about 589.0585709418. The cubic root of 346990 is about 70.2703828427.

The spelling of 346990 in words is "three hundred forty-six thousand, nine hundred ninety".