3941497779 has 16 divisors (see below), whose sum is σ = 5399180448. Its totient is φ = 2555788032.

The previous prime is 3941497771. The next prime is 3941497817. The reversal of 3941497779 is 9777941493.

It is not a de Polignac number, because 3941497779 - 2³ = 3941497771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3941497771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624789 + ... + 631065.

It is an arithmetic number, because the mean of its divisors is an integer number (337448778).

Almost surely, 2^3941497779 is an apocalyptic number.

3941497779 is a deficient number, since it is larger than the sum of its proper divisors (1457682669).

3941497779 is a wasteful number, since it uses less digits than its factorization.

3941497779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11974.

The product of its digits is 12002256, while the sum is 60.

The square root of 3941497779 is about 62781.3489740385. The cubic root of 3941497779 is about 1579.6241400189.

The spelling of 3941497779 in words is "three billion, nine hundred forty-one million, four hundred ninety-seven thousand, seven hundred seventy-nine".