70056985 has 4 divisors (see below), whose sum is σ = 84068388. Its totient is φ = 56045584.

The previous prime is 70056979. The next prime is 70057007. The reversal of 70056985 is 58965007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58965007 = 31 ⋅1902097.

It can be written as a sum of positive squares in 2 ways, for example, as 27793984 + 42263001 = 5272^2 + 6501^2 .

It is a cyclic number.

It is not a de Polignac number, because 70056985 - 2³ = 70056977 is a prime.

It is a super-2 number, since 2×70056985² = 9815962294580450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7005694 + ... + 7005703.

It is an arithmetic number, because the mean of its divisors is an integer number (21017097).

Almost surely, 2^70056985 is an apocalyptic number.

It is an amenable number.

70056985 is a deficient number, since it is larger than the sum of its proper divisors (14011403).

70056985 is a wasteful number, since it uses less digits than its factorization.

70056985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14011402.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 70056985 is about 8370.0050776568. The cubic root of 70056985 is about 412.2403336680.

The spelling of 70056985 in words is "seventy million, fifty-six thousand, nine hundred eighty-five".