70171589 has 2 divisors, whose sum is σ = 70171590. Its totient is φ = 70171588.

The previous prime is 70171583. The next prime is 70171627. The reversal of 70171589 is 98517107.

It is an a-pointer prime, because the next prime (70171627) can be obtained adding 70171589 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 18576100 = 7183^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 70171589 - 2⁸ = 70171333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70171583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35085794 + 35085795.

It is an arithmetic number, because the mean of its divisors is an integer number (35085795).

Almost surely, 2^70171589 is an apocalyptic number.

It is an amenable number.

70171589 is a deficient number, since it is larger than the sum of its proper divisors (1).

70171589 is an equidigital number, since it uses as much as digits as its factorization.

70171589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 70171589 is about 8376.8483930414. The cubic root of 70171589 is about 412.4650014996.

The spelling of 70171589 in words is "seventy million, one hundred seventy-one thousand, five hundred eighty-nine".