9729508245 has 8 divisors (see below), whose sum is σ = 15567213216. Its totient is φ = 5189071056.

The previous prime is 9729508223. The next prime is 9729508303. The reversal of 9729508245 is 5428059279.

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

It is not a de Polignac number, because 9729508245 - 2¹² = 9729504149 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324316927 + ... + 324316956.

It is an arithmetic number, because the mean of its divisors is an integer number (1945901652).

Almost surely, 2^9729508245 is an apocalyptic number.

It is an amenable number.

9729508245 is a deficient number, since it is larger than the sum of its proper divisors (5837704971).

9729508245 is a wasteful number, since it uses less digits than its factorization.

9729508245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648633891.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 9729508245 is about 98638.2696776459. The cubic root of 9729508245 is about 2134.8316368358.

The spelling of 9729508245 in words is "nine billion, seven hundred twenty-nine million, five hundred eight thousand, two hundred forty-five".