70089985 has 16 divisors (see below), whose sum is σ = 97344000. Its totient is φ = 47451456.

The previous prime is 70089967. The next prime is 70090003. The reversal of 70089985 is 58998007.

70089985 = T₂₀₁ + T₂₀₂ + ... + T₇₅₃.

It is an interprime number because it is at equal distance from previous prime (70089967) and next prime (70090003).

It is a cyclic number.

It is not a de Polignac number, because 70089985 - 2⁹ = 70089473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910 + ... + 15439.

It is an arithmetic number, because the mean of its divisors is an integer number (6084000).

Almost surely, 2^70089985 is an apocalyptic number.

It is an amenable number.

70089985 is a deficient number, since it is larger than the sum of its proper divisors (27254015).

70089985 is a wasteful number, since it uses less digits than its factorization.

70089985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25440.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 70089985 is about 8371.9761705346. The cubic root of 70089985 is about 412.3050514381.

The spelling of 70089985 in words is "seventy million, eighty-nine thousand, nine hundred eighty-five".