70691208 has 32 divisors (see below), whose sum is σ = 201975360. Its totient is φ = 20197440.

The previous prime is 70691207. The next prime is 70691209. The reversal of 70691208 is 80219607.

It is an interprime number because it is at equal distance from previous prime (70691207) and next prime (70691209).

It is not an unprimeable number, because it can be changed into a prime (70691207) 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, 210223 + ... + 210558.

It is an arithmetic number, because the mean of its divisors is an integer number (6311730).

Almost surely, 2^70691208 is an apocalyptic number.

It is an amenable number.

70691208 is an abundant number, since it is smaller than the sum of its proper divisors (131284152).

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

70691208 is a wasteful number, since it uses less digits than its factorization.

70691208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420797 (or 420793 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 70691208 is about 8407.8063726515. The cubic root of 70691208 is about 413.4805967344.

The spelling of 70691208 in words is "seventy million, six hundred ninety-one thousand, two hundred eight".