624706 has 4 divisors (see below), whose sum is σ = 937062. Its totient is φ = 312352.

The previous prime is 624683. The next prime is 624707. The reversal of 624706 is 607426.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607426 = 2 ⋅303713.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 75625 = 741^2 + 275^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (624707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156175 + ... + 156178.

2⁶²⁴⁷⁰⁶ is an apocalyptic number.

624706 is a deficient number, since it is larger than the sum of its proper divisors (312356).

624706 is a wasteful number, since it uses less digits than its factorization.

624706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312355.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 624706 is about 790.3834512438. The cubic root of 624706 is about 85.4853890198.

The spelling of 624706 in words is "six hundred twenty-four thousand, seven hundred six".