70209108 has 18 divisors (see below), whose sum is σ = 177473114. Its totient is φ = 23403024.

The previous prime is 70209107. The next prime is 70209127. The reversal of 70209108 is 80190207.

It can be written as a sum of positive squares in only one way, i.e., 58798224 + 11410884 = 7668^2 + 3378^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70209101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 975091 + ... + 975162.

Almost surely, 2^70209108 is an apocalyptic number.

It is an amenable number.

70209108 is an abundant number, since it is smaller than the sum of its proper divisors (107264006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70209108 is a wasteful number, since it uses less digits than its factorization.

70209108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950263 (or 1950258 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 70209108 is about 8379.0875398220. The cubic root of 70209108 is about 412.5384999878.

The spelling of 70209108 in words is "seventy million, two hundred nine thousand, one hundred eight".