623452741 has 2 divisors, whose sum is σ = 623452742. Its totient is φ = 623452740.

The previous prime is 623452723. The next prime is 623452763. The reversal of 623452741 is 147254326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541911841 + 81540900 = 23279^2 + 9030^2 .

It is a cyclic number.

It is not a de Polignac number, because 623452741 - 2²³ = 615064133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 623452697 and 623452706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623452721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311726370 + 311726371.

It is an arithmetic number, because the mean of its divisors is an integer number (311726371).

Almost surely, 2^623452741 is an apocalyptic number.

It is an amenable number.

623452741 is a deficient number, since it is larger than the sum of its proper divisors (1).

623452741 is an equidigital number, since it uses as much as digits as its factorization.

623452741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 623452741 is about 24969.0356441734. The cubic root of 623452741 is about 854.2818501416.

The spelling of 623452741 in words is "six hundred twenty-three million, four hundred fifty-two thousand, seven hundred forty-one".