3948421933 has 2 divisors, whose sum is σ = 3948421934. Its totient is φ = 3948421932.

The previous prime is 3948421909. The next prime is 3948421951. The reversal of 3948421933 is 3391248493.

3948421933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2737173124 + 1211248809 = 52318^2 + 34803^2 .

It is a cyclic number.

It is not a de Polignac number, because 3948421933 - 2¹⁷ = 3948290861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3948421903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974210966 + 1974210967.

It is an arithmetic number, because the mean of its divisors is an integer number (1974210967).

Almost surely, 2^3948421933 is an apocalyptic number.

It is an amenable number.

3948421933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948421933 is an equidigital number, since it uses as much as digits as its factorization.

3948421933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The square root of 3948421933 is about 62836.4697687577. The cubic root of 3948421933 is about 1580.5485908138.

The spelling of 3948421933 in words is "three billion, nine hundred forty-eight million, four hundred twenty-one thousand, nine hundred thirty-three".