70985408 has 42 divisors (see below), whose sum is σ = 152553924. Its totient is φ = 32757504.

The previous prime is 70985407. The next prime is 70985423. The reversal of 70985408 is 80458907.

It is not an unprimeable number, because it can be changed into a prime (70985407) 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 5 ways as a sum of consecutive naturals, for example, 7535 + ... + 14097.

Almost surely, 2^70985408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70985408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76276962).

70985408 is an abundant number, since it is smaller than the sum of its proper divisors (81568516).

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

70985408 is a wasteful number, since it uses less digits than its factorization.

70985408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 70985408 is about 8425.2838527850. The cubic root of 70985408 is about 414.0534054810.

The spelling of 70985408 in words is "seventy million, nine hundred eighty-five thousand, four hundred eight".