624622 has 4 divisors (see below), whose sum is σ = 936936. Its totient is φ = 312310.

The previous prime is 624607. The next prime is 624643. The reversal of 624622 is 226426.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226426 = 2 ⋅113213.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 624593 and 624602.

It is a congruent number.

It is an unprimeable number.

624622 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 as a sum of consecutive naturals, namely, 156154 + ... + 156157.

It is an arithmetic number, because the mean of its divisors is an integer number (234234).

2⁶²⁴⁶²² is an apocalyptic number.

624622 is a deficient number, since it is larger than the sum of its proper divisors (312314).

624622 is a wasteful number, since it uses less digits than its factorization.

624622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312313.

The product of its digits is 1152, while the sum is 22.

The square root of 624622 is about 790.3303106929. The cubic root of 624622 is about 85.4815573002.

The spelling of 624622 in words is "six hundred twenty-four thousand, six hundred twenty-two".