621346 has 16 divisors (see below), whose sum is σ = 1035648. Its totient is φ = 277200.

The previous prime is 621343. The next prime is 621347. The reversal of 621346 is 643126.

621346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (621343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (64728).

2⁶²¹³⁴⁶ is an apocalyptic number.

621346 is a deficient number, since it is larger than the sum of its proper divisors (414302).

621346 is a wasteful number, since it uses less digits than its factorization.

621346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 864, while the sum is 22.

The square root of 621346 is about 788.2550348713. The cubic root of 621346 is about 85.3318515096.

The spelling of 621346 in words is "six hundred twenty-one thousand, three hundred forty-six".