70088729 has 2 divisors, whose sum is σ = 70088730. Its totient is φ = 70088728.

The previous prime is 70088723. The next prime is 70088741. The reversal of 70088729 is 92788007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68029504 + 2059225 = 8248^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 70088729 - 2⁴ = 70088713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70088723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35044364 + 35044365.

It is an arithmetic number, because the mean of its divisors is an integer number (35044365).

Almost surely, 2^70088729 is an apocalyptic number.

It is an amenable number.

70088729 is a deficient number, since it is larger than the sum of its proper divisors (1).

70088729 is an equidigital number, since it uses as much as digits as its factorization.

70088729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 70088729 is about 8371.9011580405. The cubic root of 70088729 is about 412.3025886125.

The spelling of 70088729 in words is "seventy million, eighty-eight thousand, seven hundred twenty-nine".