3906697 has 2 divisors, whose sum is σ = 3906698. Its totient is φ = 3906696.

The previous prime is 3906691. The next prime is 3906701. The reversal of 3906697 is 7966093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2005056 + 1901641 = 1416^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 3906697 - 2¹⁹ = 3382409 is a prime.

It is a Chen prime.

3906697 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3906691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953348 + 1953349.

It is an arithmetic number, because the mean of its divisors is an integer number (1953349).

Almost surely, 2^3906697 is an apocalyptic number.

It is an amenable number.

3906697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906697 is an equidigital number, since it uses as much as digits as its factorization.

3906697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 3906697 is about 1976.5366174195. The cubic root of 3906697 is about 157.4961383113.

The spelling of 3906697 in words is "three million, nine hundred six thousand, six hundred ninety-seven".