3906246779 has 4 divisors (see below), whose sum is σ = 3906497400. Its totient is φ = 3905996160.

The previous prime is 3906246767. The next prime is 3906246781. The reversal of 3906246779 is 9776426093.

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 3906246779 - 2¹⁶ = 3906181243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3906246779.

It is not an unprimeable number, because it can be changed into a prime (3906246709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100262 + ... + 133659.

It is an arithmetic number, because the mean of its divisors is an integer number (976624350).

Almost surely, 2^3906246779 is an apocalyptic number.

3906246779 is a deficient number, since it is larger than the sum of its proper divisors (250621).

3906246779 is a wasteful number, since it uses less digits than its factorization.

3906246779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250620.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The square root of 3906246779 is about 62499.9742319947. The cubic root of 3906246779 is about 1574.9008794932.

The spelling of 3906246779 in words is "three billion, nine hundred six million, two hundred forty-six thousand, seven hundred seventy-nine".