970216729 has 2 divisors, whose sum is σ = 970216730. Its totient is φ = 970216728.

The previous prime is 970216699. The next prime is 970216733. The reversal of 970216729 is 927612079.

970216729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959326729 + 10890000 = 30973^2 + 3300^2 .

It is an emirp because it is prime and its reverse (927612079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 970216729 - 2¹³ = 970208537 is a prime.

It is not a weakly prime, because it can be changed into another prime (970216759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485108364 + 485108365.

It is an arithmetic number, because the mean of its divisors is an integer number (485108365).

Almost surely, 2^970216729 is an apocalyptic number.

It is an amenable number.

970216729 is a deficient number, since it is larger than the sum of its proper divisors (1).

970216729 is an equidigital number, since it uses as much as digits as its factorization.

970216729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 970216729 is about 31148.3021848704. The cubic root of 970216729 is about 989.9720187310.

The spelling of 970216729 in words is "nine hundred seventy million, two hundred sixteen thousand, seven hundred twenty-nine".