620346 has 8 divisors (see below), whose sum is σ = 1240704. Its totient is φ = 206780.

The previous prime is 620329. The next prime is 620351. The reversal of 620346 is 643026.

It is a sphenic number, since it is the product of 3 distinct primes.

620346 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620346.

It is an unprimeable number.

620346 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51690 + ... + 51701.

It is an arithmetic number, because the mean of its divisors is an integer number (155088).

2⁶²⁰³⁴⁶ is an apocalyptic number.

620346 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620346 is a wasteful number, since it uses less digits than its factorization.

620346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103396.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 620346 is about 787.6204669763. The cubic root of 620346 is about 85.2860489721.

The spelling of 620346 in words is "six hundred twenty thousand, three hundred forty-six".