2920946321 has 2 divisors, whose sum is σ = 2920946322. Its totient is φ = 2920946320.

The previous prime is 2920946317. The next prime is 2920946333. The reversal of 2920946321 is 1236490292.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2162715025 + 758231296 = 46505^2 + 27536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2920946321 - 2² = 2920946317 is a prime.

It is not a weakly prime, because it can be changed into another prime (2920946351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460473160 + 1460473161.

It is an arithmetic number, because the mean of its divisors is an integer number (1460473161).

Almost surely, 2^2920946321 is an apocalyptic number.

It is an amenable number.

2920946321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2920946321 is an equidigital number, since it uses as much as digits as its factorization.

2920946321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 2920946321 is about 54045.7798630013. The cubic root of 2920946321 is about 1429.4682883096.

The spelling of 2920946321 in words is "two billion, nine hundred twenty million, nine hundred forty-six thousand, three hundred twenty-one".