70343687 has 2 divisors, whose sum is σ = 70343688. Its totient is φ = 70343686.

The previous prime is 70343677. The next prime is 70343699. The reversal of 70343687 is 78634307.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70343687 - 2²² = 66149383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70343687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70343617) 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 as a sum of consecutive naturals, namely, 35171843 + 35171844.

It is an arithmetic number, because the mean of its divisors is an integer number (35171844).

Almost surely, 2^70343687 is an apocalyptic number.

70343687 is a deficient number, since it is larger than the sum of its proper divisors (1).

70343687 is an equidigital number, since it uses as much as digits as its factorization.

70343687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 70343687 is about 8387.1143428476. The cubic root of 70343687 is about 412.8019206207.

The spelling of 70343687 in words is "seventy million, three hundred forty-three thousand, six hundred eighty-seven".