70339081 has 4 divisors (see below), whose sum is σ = 74476692. Its totient is φ = 66201472.

The previous prime is 70339069. The next prime is 70339091. The reversal of 70339081 is 18093307.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46172025 + 24167056 = 6795^2 + 4916^2 .

It is a cyclic number.

It is not a de Polignac number, because 70339081 - 2¹⁹ = 69814793 is a prime.

It is a super-2 number, since 2×70339081² = 9895172631849122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70339001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068780 + ... + 2068813.

It is an arithmetic number, because the mean of its divisors is an integer number (18619173).

Almost surely, 2^70339081 is an apocalyptic number.

It is an amenable number.

70339081 is a deficient number, since it is larger than the sum of its proper divisors (4137611).

70339081 is a wasteful number, since it uses less digits than its factorization.

70339081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137610.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 70339081 is about 8386.8397504662. The cubic root of 70339081 is about 412.7929105388.

The spelling of 70339081 in words is "seventy million, three hundred thirty-nine thousand, eighty-one".