70985000 has 40 divisors (see below), whose sum is σ = 166329570. Its totient is φ = 28392000.

The previous prime is 70984997. The next prime is 70985017. The reversal of 70985000 is 58907.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 13498276 + 57486724 = 3674^2 + 7582^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2099 + ... + 12098.

Almost surely, 2^70985000 is an apocalyptic number.

It is an amenable number.

70985000 is an abundant number, since it is smaller than the sum of its proper divisors (95344570).

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

70985000 is a wasteful number, since it uses less digits than its factorization.

70985000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14223 (or 14204 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 70985000 is about 8425.2596399161. The cubic root of 70985000 is about 414.0526122001.

The spelling of 70985000 in words is "seventy million, nine hundred eighty-five thousand".