70855985 has 8 divisors (see below), whose sum is σ = 88724160. Its totient is φ = 54220144.

The previous prime is 70855963. The next prime is 70856003. The reversal of 70855985 is 58955807.

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

It is a cyclic number.

It is not a de Polignac number, because 70855985 - 2¹⁰ = 70854961 is a prime.

It is a super-2 number, since 2×70855985² = 10041141220640450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307955 + ... + 308184.

It is an arithmetic number, because the mean of its divisors is an integer number (11090520).

Almost surely, 2^70855985 is an apocalyptic number.

It is an amenable number.

70855985 is a deficient number, since it is larger than the sum of its proper divisors (17868175).

70855985 is a wasteful number, since it uses less digits than its factorization.

70855985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616167.

The product of its (nonzero) digits is 504000, while the sum is 47.

The square root of 70855985 is about 8417.5997172591. The cubic root of 70855985 is about 413.8016136632.

The spelling of 70855985 in words is "seventy million, eight hundred fifty-five thousand, nine hundred eighty-five".