1970383321 has 3 divisors (see below), whose sum is σ = 1970427711. Its totient is φ = 1970338932.

The previous prime is 1970383309. The next prime is 1970383399. The reversal of 1970383321 is 1233830791.

The square root of 1970383321 is 44389.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1233830791 = 23 ⋅53644817.

It can be written as a sum of positive squares in only one way, i.e., 1919403721 + 50979600 = 43811^2 + 7140^2 .

It is not a de Polignac number, because 1970383321 - 2¹⁵ = 1970350553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970383721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22195 + ... + 66583.

It is an arithmetic number, because the mean of its divisors is an integer number (656809237).

Almost surely, 2^1970383321 is an apocalyptic number.

1970383321 is the 44389-th square number.

1970383321 is the 22195-th centered octagonal number.

It is an amenable number.

1970383321 is a deficient number, since it is larger than the sum of its proper divisors (44390).

1970383321 is an frugal number, since it uses more digits than its factorization.

1970383321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88778 (or 44389 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The cubic root of 1970383321 is about 1253.6709836959.

The spelling of 1970383321 in words is "one billion, nine hundred seventy million, three hundred eighty-three thousand, three hundred twenty-one".