744426077 has 2 divisors, whose sum is σ = 744426078. Its totient is φ = 744426076.

The previous prime is 744426049. The next prime is 744426097. The reversal of 744426077 is 770624447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719366041 + 25060036 = 26821^2 + 5006^2 .

It is an emirp because it is prime and its reverse (770624447) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744426077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744426097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372213038 + 372213039.

It is an arithmetic number, because the mean of its divisors is an integer number (372213039).

Almost surely, 2^744426077 is an apocalyptic number.

It is an amenable number.

744426077 is a deficient number, since it is larger than the sum of its proper divisors (1).

744426077 is an equidigital number, since it uses as much as digits as its factorization.

744426077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 41.

The square root of 744426077 is about 27284.1726464264. The cubic root of 744426077 is about 906.3039218205.

The spelling of 744426077 in words is "seven hundred forty-four million, four hundred twenty-six thousand, seventy-seven".