3906779 has 2 divisors, whose sum is σ = 3906780. Its totient is φ = 3906778.

The previous prime is 3906769. The next prime is 3906797. The reversal of 3906779 is 9776093.

Together with next prime (3906797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3906779 is a prime.

It is not a weakly prime, because it can be changed into another prime (3906709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953389 + 1953390.

It is an arithmetic number, because the mean of its divisors is an integer number (1953390).

Almost surely, 2^3906779 is an apocalyptic number.

3906779 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906779 is an equidigital number, since it uses as much as digits as its factorization.

3906779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 3906779 is about 1976.5573606653. The cubic root of 3906779 is about 157.4972402305.

The spelling of 3906779 in words is "three million, nine hundred six thousand, seven hundred seventy-nine".