3914767421 has 2 divisors, whose sum is σ = 3914767422. Its totient is φ = 3914767420.

The previous prime is 3914767393. The next prime is 3914767427. The reversal of 3914767421 is 1247674193.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2210316196 + 1704451225 = 47014^2 + 41285^2 .

It is a cyclic number.

It is not a de Polignac number, because 3914767421 - 2⁶ = 3914767357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3914767427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957383710 + 1957383711.

It is an arithmetic number, because the mean of its divisors is an integer number (1957383711).

Almost surely, 2^3914767421 is an apocalyptic number.

It is an amenable number.

3914767421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3914767421 is an equidigital number, since it uses as much as digits as its factorization.

3914767421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 3914767421 is about 62568.1022646524. The cubic root of 3914767421 is about 1576.0451510605.

The spelling of 3914767421 in words is "three billion, nine hundred fourteen million, seven hundred sixty-seven thousand, four hundred twenty-one".