4073821931 has 2 divisors, whose sum is σ = 4073821932. Its totient is φ = 4073821930.

The previous prime is 4073821861. The next prime is 4073821967. The reversal of 4073821931 is 1391283704.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4073821931 is a prime.

It is a super-2 number, since 2×4073821931² = 33192050250993137522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4073823931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036910965 + 2036910966.

It is an arithmetic number, because the mean of its divisors is an integer number (2036910966).

Almost surely, 2^4073821931 is an apocalyptic number.

4073821931 is a deficient number, since it is larger than the sum of its proper divisors (1).

4073821931 is an equidigital number, since it uses as much as digits as its factorization.

4073821931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 4073821931 is about 63826.4986584726. The cubic root of 4073821931 is about 1597.1070028564.

The spelling of 4073821931 in words is "four billion, seventy-three million, eight hundred twenty-one thousand, nine hundred thirty-one".