70729863 has 8 divisors (see below), whose sum is σ = 94456176. Its totient is φ = 47078400.

The previous prime is 70729819. The next prime is 70729871. The reversal of 70729863 is 36892707.

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

It is not a de Polignac number, because 70729863 - 2¹⁰ = 70728839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70729873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16468 + ... + 20313.

It is an arithmetic number, because the mean of its divisors is an integer number (11807022).

Almost surely, 2^70729863 is an apocalyptic number.

70729863 is a deficient number, since it is larger than the sum of its proper divisors (23726313).

70729863 is a wasteful number, since it uses less digits than its factorization.

70729863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37425.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 70729863 is about 8410.1048150424. The cubic root of 70729863 is about 413.5559487739. Note that the first 3 decimals are identical.

The spelling of 70729863 in words is "seventy million, seven hundred twenty-nine thousand, eight hundred sixty-three".