3973870 has 32 divisors (see below), whose sum is σ = 7542720. Its totient is φ = 1505280.

The previous prime is 3973861. The next prime is 3973877. The reversal of 3973870 is 783793.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973877) 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 in 15 ways as a sum of consecutive naturals, for example, 20494 + ... + 20686.

It is an arithmetic number, because the mean of its divisors is an integer number (235710).

Almost surely, 2^3973870 is an apocalyptic number.

3973870 is a deficient number, since it is larger than the sum of its proper divisors (3568850).

3973870 is a wasteful number, since it uses less digits than its factorization.

3973870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3973870 is about 1993.4567966224. The cubic root of 3973870 is about 158.3936932070.

The spelling of 3973870 in words is "three million, nine hundred seventy-three thousand, eight hundred seventy".