622947 has 8 divisors (see below), whose sum is σ = 894544. Its totient is φ = 383328.

The previous prime is 622943. The next prime is 622957. The reversal of 622947 is 749226.

It is a happy number.

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

It is not a de Polignac number, because 622947 - 2² = 622943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622943) 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, 7948 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (111818).

2⁶²²⁹⁴⁷ is an apocalyptic number.

622947 is a deficient number, since it is larger than the sum of its proper divisors (271597).

622947 is a wasteful number, since it uses less digits than its factorization.

622947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989.

The product of its digits is 6048, while the sum is 30.

The square root of 622947 is about 789.2699158083. The cubic root of 622947 is about 85.4050791605.

The spelling of 622947 in words is "six hundred twenty-two thousand, nine hundred forty-seven".