3906919 has 2 divisors, whose sum is σ = 3906920. Its totient is φ = 3906918.

The previous prime is 3906911. The next prime is 3906949. The reversal of 3906919 is 9196093.

It is a weak prime.

It is an emirp because it is prime and its reverse (9196093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3906919 - 2³ = 3906911 is a prime.

It is a super-2 number, since 2×3906919² = 30528032145122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953459 + 1953460.

It is an arithmetic number, because the mean of its divisors is an integer number (1953460).

Almost surely, 2^3906919 is an apocalyptic number.

3906919 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906919 is an equidigital number, since it uses as much as digits as its factorization.

3906919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 3906919 is about 1976.5927754598. The cubic root of 3906919 is about 157.4991215203.

The spelling of 3906919 in words is "three million, nine hundred six thousand, nine hundred nineteen".