624748973 has 2 divisors, whose sum is σ = 624748974. Its totient is φ = 624748972.

The previous prime is 624748961. The next prime is 624748987. The reversal of 624748973 is 379847426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556818409 + 67930564 = 23597^2 + 8242^2 .

It is a cyclic number.

It is not a de Polignac number, because 624748973 - 2⁶ = 624748909 is a prime.

It is a super-2 number, since 2×624748973² = 780622558529109458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624748573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312374486 + 312374487.

It is an arithmetic number, because the mean of its divisors is an integer number (312374487).

Almost surely, 2^624748973 is an apocalyptic number.

It is an amenable number.

624748973 is a deficient number, since it is larger than the sum of its proper divisors (1).

624748973 is an equidigital number, since it uses as much as digits as its factorization.

624748973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The square root of 624748973 is about 24994.9789557823. The cubic root of 624748973 is about 854.8734913081.

The spelling of 624748973 in words is "six hundred twenty-four million, seven hundred forty-eight thousand, nine hundred seventy-three".