729421702 has 8 divisors (see below), whose sum is σ = 1102119336. Its totient is φ = 362048592.

The previous prime is 729421687. The next prime is 729421709. The reversal of 729421702 is 207124927.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729421709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330788 + ... + 1331335.

It is an arithmetic number, because the mean of its divisors is an integer number (137764917).

Almost surely, 2^729421702 is an apocalyptic number.

729421702 is a deficient number, since it is larger than the sum of its proper divisors (372697634).

729421702 is a wasteful number, since it uses less digits than its factorization.

729421702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662262.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 729421702 is about 27007.8081672690. The cubic root of 729421702 is about 900.1735064661.

The spelling of 729421702 in words is "seven hundred twenty-nine million, four hundred twenty-one thousand, seven hundred two".