2853920921 has 2 divisors, whose sum is σ = 2853920922. Its totient is φ = 2853920920.

The previous prime is 2853920869. The next prime is 2853920947. The reversal of 2853920921 is 1290293582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2826410896 + 27510025 = 53164^2 + 5245^2 .

It is a cyclic number.

It is not a de Polignac number, because 2853920921 - 2⁶ = 2853920857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2853926921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1426960460 + 1426960461.

It is an arithmetic number, because the mean of its divisors is an integer number (1426960461).

Almost surely, 2^2853920921 is an apocalyptic number.

It is an amenable number.

2853920921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2853920921 is an equidigital number, since it uses as much as digits as its factorization.

2853920921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2853920921 is about 53422.1014281542. The cubic root of 2853920921 is about 1418.4498260560.

The spelling of 2853920921 in words is "two billion, eight hundred fifty-three million, nine hundred twenty thousand, nine hundred twenty-one".