70543873 has 8 divisors (see below), whose sum is σ = 71073288. Its totient is φ = 70017024.

The previous prime is 70543861. The next prime is 70543909. The reversal of 70543873 is 37834507.

It can be written as a sum of positive squares in 4 ways, for example, as 5531904 + 65011969 = 2352^2 + 8063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70543873 - 2²⁵ = 36989441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70543813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118665 + ... + 119257.

It is an arithmetic number, because the mean of its divisors is an integer number (8884161).

Almost surely, 2^70543873 is an apocalyptic number.

It is an amenable number.

70543873 is a deficient number, since it is larger than the sum of its proper divisors (529415).

70543873 is a wasteful number, since it uses less digits than its factorization.

70543873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 70543873 is about 8399.0400046672. The cubic root of 70543873 is about 413.1931374313.

The spelling of 70543873 in words is "seventy million, five hundred forty-three thousand, eight hundred seventy-three".