624465749 has 2 divisors, whose sum is σ = 624465750. Its totient is φ = 624465748.

The previous prime is 624465719. The next prime is 624465757. The reversal of 624465749 is 947564426.

624465749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349503025 + 274962724 = 18695^2 + 16582^2 .

It is a cyclic number.

It is not a de Polignac number, because 624465749 - 2¹⁶ = 624400213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624465719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312232874 + 312232875.

It is an arithmetic number, because the mean of its divisors is an integer number (312232875).

Almost surely, 2^624465749 is an apocalyptic number.

It is an amenable number.

624465749 is a deficient number, since it is larger than the sum of its proper divisors (1).

624465749 is an equidigital number, since it uses as much as digits as its factorization.

624465749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 47.

The square root of 624465749 is about 24989.3126956305. The cubic root of 624465749 is about 854.7442888620.

The spelling of 624465749 in words is "six hundred twenty-four million, four hundred sixty-five thousand, seven hundred forty-nine".