3783720 has 32 divisors (see below), whose sum is σ = 11351520. Its totient is φ = 1008960.

The previous prime is 3783713. The next prime is 3783727. The reversal of 3783720 is 273873.

3783720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3783713) and next prime (3783727).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3783727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15646 + ... + 15885.

It is an arithmetic number, because the mean of its divisors is an integer number (354735).

Almost surely, 2^3783720 is an apocalyptic number.

3783720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3783720 is an abundant number, since it is smaller than the sum of its proper divisors (7567800).

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

3783720 is a wasteful number, since it uses less digits than its factorization.

3783720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31545 (or 31541 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 3783720 is about 1945.1786550340. The cubic root of 3783720 is about 155.8259070371.

The spelling of 3783720 in words is "three million, seven hundred eighty-three thousand, seven hundred twenty".