624901 has 4 divisors (see below), whose sum is σ = 631072. Its totient is φ = 618732.

The previous prime is 624859. The next prime is 624917. The reversal of 624901 is 109426.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109426 = 2 ⋅54713.

It is a cyclic number.

It is not a de Polignac number, because 624901 - 2¹⁵ = 592133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2931 + ... + 3136.

It is an arithmetic number, because the mean of its divisors is an integer number (157768).

2⁶²⁴⁹⁰¹ is an apocalyptic number.

It is an amenable number.

624901 is a deficient number, since it is larger than the sum of its proper divisors (6171).

624901 is a wasteful number, since it uses less digits than its factorization.

624901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 624901 is about 790.5067994647. The cubic root of 624901 is about 85.4942827590.

The spelling of 624901 in words is "six hundred twenty-four thousand, nine hundred one".