3973784 has 32 divisors (see below), whose sum is σ = 8035200. Its totient is φ = 1835520.

The previous prime is 3973757. The next prime is 3973787. The reversal of 3973784 is 4873793.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8057 + ... + 8535.

It is an arithmetic number, because the mean of its divisors is an integer number (251100).

Almost surely, 2^3973784 is an apocalyptic number.

3973784 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3973784 is an abundant number, since it is smaller than the sum of its proper divisors (4061416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3973784 is a wasteful number, since it uses less digits than its factorization.

3973784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 559 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 3973784 is about 1993.4352259354. The cubic root of 3973784 is about 158.3925505798.

Subtracting 3973784 from its reverse (4873793), we obtain a palindrome (900009).

The spelling of 3973784 in words is "three million, nine hundred seventy-three thousand, seven hundred eighty-four".