746978729 has 16 divisors (see below), whose sum is σ = 867975936. Its totient is φ = 629640000.

The previous prime is 746978719. The next prime is 746978731. The reversal of 746978729 is 927879647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-746978729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (746978719) 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 in 15 ways as a sum of consecutive naturals, for example, 103259 + ... + 110255.

It is an arithmetic number, because the mean of its divisors is an integer number (54248496).

Almost surely, 2^746978729 is an apocalyptic number.

It is an amenable number.

746978729 is a deficient number, since it is larger than the sum of its proper divisors (120997207).

746978729 is a wasteful number, since it uses less digits than its factorization.

746978729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256.

The product of its digits is 10668672, while the sum is 59.

The square root of 746978729 is about 27330.9116020670. The cubic root of 746978729 is about 907.3386514799.

The spelling of 746978729 in words is "seven hundred forty-six million, nine hundred seventy-eight thousand, seven hundred twenty-nine".