70990343 has 2 divisors, whose sum is σ = 70990344. Its totient is φ = 70990342.

The previous prime is 70990331. The next prime is 70990363. The reversal of 70990343 is 34309907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70990343 - 2¹² = 70986247 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 (70990303) 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 as a sum of consecutive naturals, namely, 35495171 + 35495172.

It is an arithmetic number, because the mean of its divisors is an integer number (35495172).

Almost surely, 2^70990343 is an apocalyptic number.

70990343 is a deficient number, since it is larger than the sum of its proper divisors (1).

70990343 is an equidigital number, since it uses as much as digits as its factorization.

70990343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 70990343 is about 8425.5767161661. The cubic root of 70990343 is about 414.0630004399.

The spelling of 70990343 in words is "seventy million, nine hundred ninety thousand, three hundred forty-three".