70056685 has 4 divisors (see below), whose sum is σ = 84068028. Its totient is φ = 56045344.

The previous prime is 70056661. The next prime is 70056703. The reversal of 70056685 is 58665007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58665007 = 467 ⋅125621.

It can be written as a sum of positive squares in 2 ways, for example, as 19105641 + 50951044 = 4371^2 + 7138^2 .

It is a cyclic number.

It is not a de Polignac number, because 70056685 - 2¹³ = 70048493 is a prime.

It is a super-3 number, since 3×70056685³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7005664 + ... + 7005673.

It is an arithmetic number, because the mean of its divisors is an integer number (21017007).

Almost surely, 2^70056685 is an apocalyptic number.

It is an amenable number.

70056685 is a deficient number, since it is larger than the sum of its proper divisors (14011343).

70056685 is a wasteful number, since it uses less digits than its factorization.

70056685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14011342.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 70056685 is about 8369.9871565015. The cubic root of 70056685 is about 412.2397452314.

The spelling of 70056685 in words is "seventy million, fifty-six thousand, six hundred eighty-five".