3964546 has 4 divisors (see below), whose sum is σ = 5946822. Its totient is φ = 1982272.

The previous prime is 3964531. The next prime is 3964549. The reversal of 3964546 is 6454693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6454693 = 7 ⋅922099.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 119025 = 1961^2 + 345^2 .

It is a super-2 number, since 2×3964546² = 31435249972232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991135 + ... + 991138.

Almost surely, 2^3964546 is an apocalyptic number.

3964546 is a deficient number, since it is larger than the sum of its proper divisors (1982276).

3964546 is a wasteful number, since it uses less digits than its factorization.

3964546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982275.

The product of its digits is 77760, while the sum is 37.

The square root of 3964546 is about 1991.1167720654. The cubic root of 3964546 is about 158.2697150387.

The spelling of 3964546 in words is "three million, nine hundred sixty-four thousand, five hundred forty-six".