1970683357 has 2 divisors, whose sum is σ = 1970683358. Its totient is φ = 1970683356.

The previous prime is 1970683339. The next prime is 1970683391. The reversal of 1970683357 is 7533860791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1719429156 + 251254201 = 41466^2 + 15851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970683357 - 2¹⁹ = 1970159069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1970683357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970683397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985341678 + 985341679.

It is an arithmetic number, because the mean of its divisors is an integer number (985341679).

Almost surely, 2^1970683357 is an apocalyptic number.

It is an amenable number.

1970683357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970683357 is an equidigital number, since it uses as much as digits as its factorization.

1970683357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 1970683357 is about 44392.3794924309. The cubic root of 1970683357 is about 1253.7346138421.

The spelling of 1970683357 in words is "one billion, nine hundred seventy million, six hundred eighty-three thousand, three hundred fifty-seven".