970628641 has 2 divisors, whose sum is σ = 970628642. Its totient is φ = 970628640.

The previous prime is 970628639. The next prime is 970628663. The reversal of 970628641 is 146826079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919363041 + 51265600 = 30321^2 + 7160^2 .

It is an emirp because it is prime and its reverse (146826079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 970628641 - 2¹ = 970628639 is a prime.

Together with 970628639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (970628611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485314320 + 485314321.

It is an arithmetic number, because the mean of its divisors is an integer number (485314321).

Almost surely, 2^970628641 is an apocalyptic number.

It is an amenable number.

970628641 is a deficient number, since it is larger than the sum of its proper divisors (1).

970628641 is an equidigital number, since it uses as much as digits as its factorization.

970628641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 970628641 is about 31154.9135932039. The cubic root of 970628641 is about 990.1120986557.

The spelling of 970628641 in words is "nine hundred seventy million, six hundred twenty-eight thousand, six hundred forty-one".