623825413 has 2 divisors, whose sum is σ = 623825414. Its totient is φ = 623825412.

The previous prime is 623825393. The next prime is 623825417. The reversal of 623825413 is 314528326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331312804 + 292512609 = 18202^2 + 17103^2 .

It is a cyclic number.

It is not a de Polignac number, because 623825413 - 2¹⁷ = 623694341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623825417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311912706 + 311912707.

It is an arithmetic number, because the mean of its divisors is an integer number (311912707).

Almost surely, 2^623825413 is an apocalyptic number.

It is an amenable number.

623825413 is a deficient number, since it is larger than the sum of its proper divisors (1).

623825413 is an equidigital number, since it uses as much as digits as its factorization.

623825413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 623825413 is about 24976.4972123795. The cubic root of 623825413 is about 854.4520333224.

The spelling of 623825413 in words is "six hundred twenty-three million, eight hundred twenty-five thousand, four hundred thirteen".