70021106 has 8 divisors (see below), whose sum is σ = 106212060. Its totient is φ = 34617088.

The previous prime is 70021093. The next prime is 70021129. The reversal of 70021106 is 60112007.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69872881 + 148225 = 8359^2 + 385^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196511 + ... + 196866.

Almost surely, 2^70021106 is an apocalyptic number.

70021106 is a deficient number, since it is larger than the sum of its proper divisors (36190954).

70021106 is a wasteful number, since it uses less digits than its factorization.

70021106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393468.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 70021106 is about 8367.8614950297. The cubic root of 70021106 is about 412.1699466983.

Subtracting from 70021106 its reverse (60112007), we obtain a palindrome (9909099).

The spelling of 70021106 in words is "seventy million, twenty-one thousand, one hundred six".