70984129 has 8 divisors (see below), whose sum is σ = 75285288. Its totient is φ = 66696960.

The previous prime is 70984117. The next prime is 70984153. The reversal of 70984129 is 92148907.

It can be written as a sum of positive squares in 4 ways, for example, as 30636225 + 40347904 = 5535^2 + 6352^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70984129 - 2⁵ = 70984097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70984091 and 70984100.

It is not an unprimeable number, because it can be changed into a prime (70984169) 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, 8079 + ... + 14395.

It is an arithmetic number, because the mean of its divisors is an integer number (9410661).

Almost surely, 2^70984129 is an apocalyptic number.

It is an amenable number.

70984129 is a deficient number, since it is larger than the sum of its proper divisors (4301159).

70984129 is a wasteful number, since it uses less digits than its factorization.

70984129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 70984129 is about 8425.2079499559. The cubic root of 70984129 is about 414.0509186907.

The spelling of 70984129 in words is "seventy million, nine hundred eighty-four thousand, one hundred twenty-nine".