743776541 has 2 divisors, whose sum is σ = 743776542. Its totient is φ = 743776540.

The previous prime is 743776499. The next prime is 743776577. The reversal of 743776541 is 145677347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477597316 + 266179225 = 21854^2 + 16315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743776541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743776492 and 743776501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743770541) 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, 371888270 + 371888271.

It is an arithmetic number, because the mean of its divisors is an integer number (371888271).

Almost surely, 2^743776541 is an apocalyptic number.

It is an amenable number.

743776541 is a deficient number, since it is larger than the sum of its proper divisors (1).

743776541 is an equidigital number, since it uses as much as digits as its factorization.

743776541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 44.

The square root of 743776541 is about 27272.2668841444. The cubic root of 743776541 is about 906.0402518880.

The spelling of 743776541 in words is "seven hundred forty-three million, seven hundred seventy-six thousand, five hundred forty-one".