3946912 has 12 divisors (see below), whose sum is σ = 7770546. Its totient is φ = 1973440.

The previous prime is 3946879. The next prime is 3946913. The reversal of 3946912 is 2196493.

It can be written as a sum of positive squares in only one way, i.e., 2298256 + 1648656 = 1516^2 + 1284^2 .

It is a super-2 number, since 2×3946912² = 31156228671488, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3946913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61639 + ... + 61702.

Almost surely, 2^3946912 is an apocalyptic number.

3946912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3946912 is a deficient number, since it is larger than the sum of its proper divisors (3823634).

3946912 is a wasteful number, since it uses less digits than its factorization.

3946912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123351 (or 123343 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 3946912 is about 1986.6836688310. The cubic root of 3946912 is about 158.0347090333.

The spelling of 3946912 in words is "three million, nine hundred forty-six thousand, nine hundred twelve".