70147643 has 2 divisors, whose sum is σ = 70147644. Its totient is φ = 70147642.

The previous prime is 70147619. The next prime is 70147657. The reversal of 70147643 is 34674107.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70147643 - 2⁶ = 70147579 is a prime.

It is not a weakly prime, because it can be changed into another prime (70147613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35073821 + 35073822.

It is an arithmetic number, because the mean of its divisors is an integer number (35073822).

Almost surely, 2^70147643 is an apocalyptic number.

70147643 is a deficient number, since it is larger than the sum of its proper divisors (1).

70147643 is an equidigital number, since it uses as much as digits as its factorization.

70147643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 70147643 is about 8375.4189745946. The cubic root of 70147643 is about 412.4180783750.

The spelling of 70147643 in words is "seventy million, one hundred forty-seven thousand, six hundred forty-three".