70881343 has 16 divisors (see below), whose sum is σ = 80680320. Its totient is φ = 61731936.

The previous prime is 70881323. The next prime is 70881353. The reversal of 70881343 is 34318807.

It is a cyclic number.

It is not a de Polignac number, because 70881343 - 2²⁵ = 37326911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70881299 and 70881308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70881323) 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 15 ways as a sum of consecutive naturals, for example, 85296 + ... + 86122.

It is an arithmetic number, because the mean of its divisors is an integer number (5042520).

Almost surely, 2^70881343 is an apocalyptic number.

70881343 is a deficient number, since it is larger than the sum of its proper divisors (9798977).

70881343 is a wasteful number, since it uses less digits than its factorization.

70881343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 70881343 is about 8419.1058313814. The cubic root of 70881343 is about 413.8509716664.

The spelling of 70881343 in words is "seventy million, eight hundred eighty-one thousand, three hundred forty-three".