743686706 has 16 divisors (see below), whose sum is σ = 1283015616. Its totient is φ = 316691856.

The previous prime is 743686703. The next prime is 743686711. The reversal of 743686706 is 607686347.

It is a super-2 number, since 2×743686706² = 1106139833362260872, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (743686703) 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 in 7 ways as a sum of consecutive naturals, for example, 166976 + ... + 171371.

It is an arithmetic number, because the mean of its divisors is an integer number (80188476).

Almost surely, 2^743686706 is an apocalyptic number.

743686706 is a deficient number, since it is larger than the sum of its proper divisors (539328910).

743686706 is a wasteful number, since it uses less digits than its factorization.

743686706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338513.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 743686706 is about 27270.6198316063. The cubic root of 743686706 is about 906.0037725609.

The spelling of 743686706 in words is "seven hundred forty-three million, six hundred eighty-six thousand, seven hundred six".