621367 has 4 divisors (see below), whose sum is σ = 657936. Its totient is φ = 584800.

The previous prime is 621359. The next prime is 621371. The reversal of 621367 is 763126.

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

It is not a de Polignac number, because 621367 - 2³ = 621359 is a prime.

It is a Duffinian number.

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 621367.

It is not an unprimeable number, because it can be changed into a prime (621317) 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 3 ways as a sum of consecutive naturals, for example, 18259 + ... + 18292.

It is an arithmetic number, because the mean of its divisors is an integer number (164484).

2⁶²¹³⁶⁷ is an apocalyptic number.

621367 is a deficient number, since it is larger than the sum of its proper divisors (36569).

621367 is a wasteful number, since it uses less digits than its factorization.

621367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36568.

The product of its digits is 1512, while the sum is 25.

The square root of 621367 is about 788.2683553207. The cubic root of 621367 is about 85.3328128359.

The spelling of 621367 in words is "six hundred twenty-one thousand, three hundred sixty-seven".