3948401959 has 4 divisors (see below), whose sum is σ = 3953108880. Its totient is φ = 3943695040.

The previous prime is 3948401957. The next prime is 3948401981. The reversal of 3948401959 is 9591048493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9591048493 = 13 ⋅737772961.

It is a cyclic number.

It is not a de Polignac number, because 3948401959 - 2¹ = 3948401957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948401957) 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, 2352202 + ... + 2353879.

It is an arithmetic number, because the mean of its divisors is an integer number (988277220).

Almost surely, 2^3948401959 is an apocalyptic number.

3948401959 is a deficient number, since it is larger than the sum of its proper divisors (4706921).

3948401959 is an equidigital number, since it uses as much as digits as its factorization.

3948401959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706920.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 3948401959 is about 62836.3108321932. The cubic root of 3948401959 is about 1580.5459256199.

The spelling of 3948401959 in words is "three billion, nine hundred forty-eight million, four hundred one thousand, nine hundred fifty-nine".