3923780 has 24 divisors (see below), whose sum is σ = 9417408. Its totient is φ = 1345248.

The previous prime is 3923779. The next prime is 3923789. The reversal of 3923780 is 873293.

It is not an unprimeable number, because it can be changed into a prime (3923789) 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, 13874 + ... + 14153.

It is an arithmetic number, because the mean of its divisors is an integer number (392392).

Almost surely, 2^3923780 is an apocalyptic number.

It is an amenable number.

3923780 is an abundant number, since it is smaller than the sum of its proper divisors (5493628).

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

3923780 is a wasteful number, since it uses less digits than its factorization.

3923780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28043 (or 28041 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 3923780 is about 1980.8533514624. The cubic root of 3923780 is about 157.7253681351.

The spelling of 3923780 in words is "three million, nine hundred twenty-three thousand, seven hundred eighty".