624973 has 2 divisors, whose sum is σ = 624974. Its totient is φ = 624972.

The previous prime is 624961. The next prime is 624977. The reversal of 624973 is 379426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381924 + 243049 = 618^2 + 493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624973 is a prime.

624973 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312486 + 312487.

It is an arithmetic number, because the mean of its divisors is an integer number (312487).

2⁶²⁴⁹⁷³ is an apocalyptic number.

It is an amenable number.

624973 is a deficient number, since it is larger than the sum of its proper divisors (1).

624973 is an equidigital number, since it uses as much as digits as its factorization.

624973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 624973 is about 790.5523385583. The cubic root of 624973 is about 85.4975661334.

It can be divided in two parts, 62497 and 3, that added together give a square (62500 = 250²).

The spelling of 624973 in words is "six hundred twenty-four thousand, nine hundred seventy-three".