2924321921 has 2 divisors, whose sum is σ = 2924321922. Its totient is φ = 2924321920.

The previous prime is 2924321891. The next prime is 2924321927. The reversal of 2924321921 is 1291234292.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2826410896 + 97911025 = 53164^2 + 9895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2924321921 is a prime.

It is a super-2 number, since 2×2924321921² = 17103317395282260482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2924321927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1462160960 + 1462160961.

It is an arithmetic number, because the mean of its divisors is an integer number (1462160961).

Almost surely, 2^2924321921 is an apocalyptic number.

It is an amenable number.

2924321921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2924321921 is an equidigital number, since it uses as much as digits as its factorization.

2924321921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 2924321921 is about 54076.9999260314. Note that the first 4 decimals coincide. The cubic root of 2924321921 is about 1430.0187327000.

The spelling of 2924321921 in words is "two billion, nine hundred twenty-four million, three hundred twenty-one thousand, nine hundred twenty-one".