745578629 has 2 divisors, whose sum is σ = 745578630. Its totient is φ = 745578628.

The previous prime is 745578517. The next prime is 745578643. The reversal of 745578629 is 926875547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662805025 + 82773604 = 25745^2 + 9098^2 .

It is a cyclic number.

It is not a de Polignac number, because 745578629 - 2²⁰ = 744530053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745578679) 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, 372789314 + 372789315.

It is an arithmetic number, because the mean of its divisors is an integer number (372789315).

Almost surely, 2^745578629 is an apocalyptic number.

It is an amenable number.

745578629 is a deficient number, since it is larger than the sum of its proper divisors (1).

745578629 is an equidigital number, since it uses as much as digits as its factorization.

745578629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 53.

The square root of 745578629 is about 27305.2857337183. The cubic root of 745578629 is about 906.7714066900.

The spelling of 745578629 in words is "seven hundred forty-five million, five hundred seventy-eight thousand, six hundred twenty-nine".