70985049 has 4 divisors (see below), whose sum is σ = 94646736. Its totient is φ = 47323364.

The previous prime is 70985041. The next prime is 70985077. The reversal of 70985049 is 94058907.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70985049 - 2³ = 70985041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70985049.

It is not an unprimeable number, because it can be changed into a prime (70985041) by changing a digit.

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, 11830839 + ... + 11830844.

It is an arithmetic number, because the mean of its divisors is an integer number (23661684).

Almost surely, 2^70985049 is an apocalyptic number.

It is an amenable number.

70985049 is a deficient number, since it is larger than the sum of its proper divisors (23661687).

70985049 is a wasteful number, since it uses less digits than its factorization.

70985049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23661686.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 70985049 is about 8425.2625478379. The cubic root of 70985049 is about 414.0527074717.

It can be divided in two parts, 709 and 85049, that added together give a palindrome (85758).

The spelling of 70985049 in words is "seventy million, nine hundred eighty-five thousand, forty-nine".