624396 has 24 divisors (see below), whose sum is σ = 1482544. Its totient is φ = 204480.

The previous prime is 624391. The next prime is 624401. The reversal of 624396 is 693426.

It is an interprime number because it is at equal distance from previous prime (624391) and next prime (624401).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (624391) 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, 306 + ... + 1158.

2⁶²⁴³⁹⁶ is an apocalyptic number.

It is an amenable number.

624396 is an abundant number, since it is smaller than the sum of its proper divisors (858148).

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

624396 is a wasteful number, since it uses less digits than its factorization.

624396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 624396 is about 790.1873195642. The cubic root of 624396 is about 85.4712464443.

Adding to 624396 its sum of digits (30), we get a palindrome (624426).

The spelling of 624396 in words is "six hundred twenty-four thousand, three hundred ninety-six".