346631 has 4 divisors (see below), whose sum is σ = 348264. Its totient is φ = 345000.

The previous prime is 346627. The next prime is 346639. The reversal of 346631 is 136643.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 346631 - 2² = 346627 is a prime.

It is a super-2 number, since 2×346631² = 240306100322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 346597 and 346606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 941.

It is an arithmetic number, because the mean of its divisors is an integer number (87066).

2³⁴⁶⁶³¹ is an apocalyptic number.

346631 is a deficient number, since it is larger than the sum of its proper divisors (1633).

346631 is a wasteful number, since it uses less digits than its factorization.

346631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its digits is 1296, while the sum is 23.

The square root of 346631 is about 588.7537685654. The cubic root of 346631 is about 70.2461402877.

The spelling of 346631 in words is "three hundred forty-six thousand, six hundred thirty-one".