3942421963 has 4 divisors (see below), whose sum is σ = 3947023080. Its totient is φ = 3937820848.

The previous prime is 3942421961. The next prime is 3942421999. The reversal of 3942421963 is 3691242493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3942421963 - 2¹ = 3942421961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3942421961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2299273 + ... + 2300986.

It is an arithmetic number, because the mean of its divisors is an integer number (986755770).

Almost surely, 2^3942421963 is an apocalyptic number.

3942421963 is a deficient number, since it is larger than the sum of its proper divisors (4601117).

3942421963 is an equidigital number, since it uses as much as digits as its factorization.

3942421963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601116.

The product of its digits is 279936, while the sum is 43.

The square root of 3942421963 is about 62788.7088814542. The cubic root of 3942421963 is about 1579.7475913355.

The spelling of 3942421963 in words is "three billion, nine hundred forty-two million, four hundred twenty-one thousand, nine hundred sixty-three".