729801651 has 8 divisors (see below), whose sum is σ = 976582864. Its totient is φ = 484777440.

The previous prime is 729801649. The next prime is 729801671. The reversal of 729801651 is 156108927.

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

It is not a de Polignac number, because 729801651 - 2¹ = 729801649 is a prime.

It is a super-2 number, since 2×729801651² = 1065220899604651602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729801671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438280 + ... + 439941.

It is an arithmetic number, because the mean of its divisors is an integer number (122072858).

Almost surely, 2^729801651 is an apocalyptic number.

729801651 is a deficient number, since it is larger than the sum of its proper divisors (246781213).

729801651 is a wasteful number, since it uses less digits than its factorization.

729801651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878501.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 729801651 is about 27014.8413099170. The cubic root of 729801651 is about 900.3297766798.

The spelling of 729801651 in words is "seven hundred twenty-nine million, eight hundred one thousand, six hundred fifty-one".