3946829 has 2 divisors, whose sum is σ = 3946830. Its totient is φ = 3946828.

The previous prime is 3946801. The next prime is 3946837. The reversal of 3946829 is 9286493.

3946829 = 1146² + 1147² + 1148².

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3232804 + 714025 = 1798^2 + 845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3946829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3946879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973414 + 1973415.

It is an arithmetic number, because the mean of its divisors is an integer number (1973415).

Almost surely, 2^3946829 is an apocalyptic number.

It is an amenable number.

3946829 is a deficient number, since it is larger than the sum of its proper divisors (1).

3946829 is an equidigital number, since it uses as much as digits as its factorization.

3946829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 3946829 is about 1986.6627796383. The cubic root of 3946829 is about 158.0336012497.

The spelling of 3946829 in words is "three million, nine hundred forty-six thousand, eight hundred twenty-nine".