70585387 has 4 divisors (see below), whose sum is σ = 70955136. Its totient is φ = 70215640.

The previous prime is 70585373. The next prime is 70585393. The reversal of 70585387 is 78358507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78358507 = 2203 ⋅35569.

It is a cyclic number.

It is not a de Polignac number, because 70585387 - 2⁷ = 70585259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70585397) 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 3 ways as a sum of consecutive naturals, for example, 184588 + ... + 184969.

It is an arithmetic number, because the mean of its divisors is an integer number (17738784).

Almost surely, 2^70585387 is an apocalyptic number.

70585387 is a deficient number, since it is larger than the sum of its proper divisors (369749).

70585387 is a wasteful number, since it uses less digits than its factorization.

70585387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369748.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 70585387 is about 8401.5109950532. The cubic root of 70585387 is about 413.2741741699.

The spelling of 70585387 in words is "seventy million, five hundred eighty-five thousand, three hundred eighty-seven".