70008729 has 8 divisors (see below), whose sum is σ = 106680000. Its totient is φ = 40004976.

The previous prime is 70008727. The next prime is 70008733. The reversal of 70008729 is 92780007.

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

It is not a de Polignac number, because 70008729 - 2¹ = 70008727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70008729.

It is not an unprimeable number, because it can be changed into a prime (70008727) 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, 1666854 + ... + 1666895.

It is an arithmetic number, because the mean of its divisors is an integer number (13335000).

Almost surely, 2^70008729 is an apocalyptic number.

It is an amenable number.

70008729 is a deficient number, since it is larger than the sum of its proper divisors (36671271).

70008729 is a wasteful number, since it uses less digits than its factorization.

70008729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333759.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 70008729 is about 8367.1219066056. The cubic root of 70008729 is about 412.1456600781.

The spelling of 70008729 in words is "seventy million, eight thousand, seven hundred twenty-nine".