3962818 has 4 divisors (see below), whose sum is σ = 5944230. Its totient is φ = 1981408.

The previous prime is 3962813. The next prime is 3962839. The reversal of 3962818 is 8182693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3908529 + 54289 = 1977^2 + 233^2 .

It is a super-2 number, since 2×3962818² = 31407853002248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3962813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990703 + ... + 990706.

Almost surely, 2^3962818 is an apocalyptic number.

3962818 is a deficient number, since it is larger than the sum of its proper divisors (1981412).

3962818 is a wasteful number, since it uses less digits than its factorization.

3962818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981411.

The product of its digits is 20736, while the sum is 37.

The square root of 3962818 is about 1990.6827974341. The cubic root of 3962818 is about 158.2467170450.

The spelling of 3962818 in words is "three million, nine hundred sixty-two thousand, eight hundred eighteen".