3946436 has 24 divisors (see below), whose sum is σ = 7696920. Its totient is φ = 1757952.

The previous prime is 3946429. The next prime is 3946447. The reversal of 3946436 is 6346493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 988036 + 2958400 = 994^2 + 1720^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3946396 and 3946405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (320705).

Almost surely, 2^3946436 is an apocalyptic number.

It is an amenable number.

3946436 is a deficient number, since it is larger than the sum of its proper divisors (3750484).

3946436 is a wasteful number, since it uses less digits than its factorization.

3946436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663 (or 2661 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 3946436 is about 1986.5638675864. The cubic root of 3946436 is about 158.0283557504.

The spelling of 3946436 in words is "three million, nine hundred forty-six thousand, four hundred thirty-six".