3973826 has 4 divisors (see below), whose sum is σ = 5960742. Its totient is φ = 1986912.

The previous prime is 3973811. The next prime is 3973829. The reversal of 3973826 is 6283793.

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., 3418801 + 555025 = 1849^2 + 745^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 3 + 9 + 7⁴ + 3¹³ + 8⁷ + 2 + 6⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 3973826.

It is not an unprimeable number, because it can be changed into a prime (3973829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993455 + ... + 993458.

Almost surely, 2^3973826 is an apocalyptic number.

3973826 is a deficient number, since it is larger than the sum of its proper divisors (1986916).

3973826 is a wasteful number, since it uses less digits than its factorization.

3973826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986915.

The product of its digits is 54432, while the sum is 38.

The square root of 3973826 is about 1993.4457604861. The cubic root of 3973826 is about 158.3931086091.

The spelling of 3973826 in words is "three million, nine hundred seventy-three thousand, eight hundred twenty-six".