970822421 has 2 divisors, whose sum is σ = 970822422. Its totient is φ = 970822420.

The previous prime is 970822339. The next prime is 970822453. The reversal of 970822421 is 124228079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878470321 + 92352100 = 29639^2 + 9610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-970822421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970825421) 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 as a sum of consecutive naturals, namely, 485411210 + 485411211.

It is an arithmetic number, because the mean of its divisors is an integer number (485411211).

Almost surely, 2^970822421 is an apocalyptic number.

It is an amenable number.

970822421 is a deficient number, since it is larger than the sum of its proper divisors (1).

970822421 is an equidigital number, since it uses as much as digits as its factorization.

970822421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 970822421 is about 31158.0233808244. The cubic root of 970822421 is about 990.1779841886.

The spelling of 970822421 in words is "nine hundred seventy million, eight hundred twenty-two thousand, four hundred twenty-one".