743667434 has 4 divisors (see below), whose sum is σ = 1115501154. Its totient is φ = 371833716.

The previous prime is 743667383. The next prime is 743667439. The reversal of 743667434 is 434766347.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 549761809 + 193905625 = 23447^2 + 13925^2 .

It is not an unprimeable number, because it can be changed into a prime (743667439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185916857 + ... + 185916860.

Almost surely, 2^743667434 is an apocalyptic number.

743667434 is a deficient number, since it is larger than the sum of its proper divisors (371833720).

743667434 is a wasteful number, since it uses less digits than its factorization.

743667434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371833719.

The product of its digits is 1016064, while the sum is 44.

The square root of 743667434 is about 27270.2664820130. The cubic root of 743667434 is about 905.9959463910.

The spelling of 743667434 in words is "seven hundred forty-three million, six hundred sixty-seven thousand, four hundred thirty-four".