970221293 has 2 divisors, whose sum is σ = 970221294. Its totient is φ = 970221292.

The previous prime is 970221283. The next prime is 970221299. The reversal of 970221293 is 392122079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962364484 + 7856809 = 31022^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 970221293 - 2²⁴ = 953444077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970221299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485110646 + 485110647.

It is an arithmetic number, because the mean of its divisors is an integer number (485110647).

Almost surely, 2^970221293 is an apocalyptic number.

It is an amenable number.

970221293 is a deficient number, since it is larger than the sum of its proper divisors (1).

970221293 is an equidigital number, since it uses as much as digits as its factorization.

970221293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 970221293 is about 31148.3754472043. The cubic root of 970221293 is about 989.9735710388.

The spelling of 970221293 in words is "nine hundred seventy million, two hundred twenty-one thousand, two hundred ninety-three".