70720343 has 2 divisors, whose sum is σ = 70720344. Its totient is φ = 70720342.

The previous prime is 70720333. The next prime is 70720361. The reversal of 70720343 is 34302707.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70720343 - 2⁸ = 70720087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70720303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35360171 + 35360172.

It is an arithmetic number, because the mean of its divisors is an integer number (35360172).

Almost surely, 2^70720343 is an apocalyptic number.

70720343 is a deficient number, since it is larger than the sum of its proper divisors (1).

70720343 is an equidigital number, since it uses as much as digits as its factorization.

70720343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 70720343 is about 8409.5388101845. The cubic root of 70720343 is about 413.5373935314.

The spelling of 70720343 in words is "seventy million, seven hundred twenty thousand, three hundred forty-three".