743389666 has 8 divisors (see below), whose sum is σ = 1128519504. Its totient is φ = 367216500.

The previous prime is 743389657. The next prime is 743389709. The reversal of 743389666 is 666983347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2238960 + ... + 2239291.

It is an arithmetic number, because the mean of its divisors is an integer number (141064938).

Almost surely, 2^743389666 is an apocalyptic number.

743389666 is a deficient number, since it is larger than the sum of its proper divisors (385129838).

743389666 is a wasteful number, since it uses less digits than its factorization.

743389666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478336.

The product of its digits is 3919104, while the sum is 52.

The square root of 743389666 is about 27265.1731335049. The cubic root of 743389666 is about 905.8831325133.

The spelling of 743389666 in words is "seven hundred forty-three million, three hundred eighty-nine thousand, six hundred sixty-six".