700071309 has 32 divisors (see below), whose sum is σ = 1236848640. Its totient is φ = 382645296.

The previous prime is 700071287. The next prime is 700071311. The reversal of 700071309 is 903170007.

It is not a de Polignac number, because 700071309 - 2⁹ = 700070797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700071349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76177 + ... + 84870.

It is an arithmetic number, because the mean of its divisors is an integer number (38651520).

Almost surely, 2^700071309 is an apocalyptic number.

It is an amenable number.

700071309 is a deficient number, since it is larger than the sum of its proper divisors (536777331).

700071309 is a wasteful number, since it uses less digits than its factorization.

700071309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161086 (or 161080 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 700071309 is about 26458.8606897576. The cubic root of 700071309 is about 887.9341509791.

The spelling of 700071309 in words is "seven hundred million, seventy-one thousand, three hundred nine".