743716436 has 6 divisors (see below), whose sum is σ = 1301503770. Its totient is φ = 371858216.

The previous prime is 743716387. The next prime is 743716439. The reversal of 743716436 is 634617347.

It can be written as a sum of positive squares in only one way, i.e., 410872900 + 332843536 = 20270^2 + 18244^2 .

It is a super-2 number, since 2×743716436² = 1106228274353084192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 743716393 and 743716402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743716439) 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, 92964551 + ... + 92964558.

It is an arithmetic number, because the mean of its divisors is an integer number (216917295).

Almost surely, 2^743716436 is an apocalyptic number.

It is an amenable number.

743716436 is a deficient number, since it is larger than the sum of its proper divisors (557787334).

743716436 is a wasteful number, since it uses less digits than its factorization.

743716436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185929113 (or 185929111 counting only the distinct ones).

The product of its digits is 254016, while the sum is 41.

The square root of 743716436 is about 27271.1649182795. The cubic root of 743716436 is about 906.0158453567.

The spelling of 743716436 in words is "seven hundred forty-three million, seven hundred sixteen thousand, four hundred thirty-six".