70543641 has 8 divisors (see below), whose sum is σ = 107495104. Its totient is φ = 40310640.

The previous prime is 70543589. The next prime is 70543643. The reversal of 70543641 is 14634507.

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

It is not a de Polignac number, because 70543641 - 2⁷ = 70543513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70543599 and 70543608.

It is not an unprimeable number, because it can be changed into a prime (70543643) 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 7 ways as a sum of consecutive naturals, for example, 1679590 + ... + 1679631.

It is an arithmetic number, because the mean of its divisors is an integer number (13436888).

Almost surely, 2^70543641 is an apocalyptic number.

It is an amenable number.

70543641 is a deficient number, since it is larger than the sum of its proper divisors (36951463).

70543641 is a wasteful number, since it uses less digits than its factorization.

70543641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359231.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 70543641 is about 8399.0261935536. The cubic root of 70543641 is about 413.1926844700.

The spelling of 70543641 in words is "seventy million, five hundred forty-three thousand, six hundred forty-one".