3781964 has 12 divisors (see below), whose sum is σ = 6651288. Its totient is φ = 1881600.

The previous prime is 3781961. The next prime is 3781993. The reversal of 3781964 is 4691873.

3781964 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3³ + 7³ + 8⁷ + 1 + 9³ + 6⁸ + 4⁶ .

It is not an unprimeable number, because it can be changed into a prime (3781961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397 + ... + 3084.

It is an arithmetic number, because the mean of its divisors is an integer number (554274).

Almost surely, 2^3781964 is an apocalyptic number.

It is an amenable number.

3781964 is a deficient number, since it is larger than the sum of its proper divisors (2869324).

3781964 is a wasteful number, since it uses less digits than its factorization.

3781964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696 (or 4694 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 3781964 is about 1944.7272302305. The cubic root of 3781964 is about 155.8017973748.

Subtracting 3781964 from its reverse (4691873), we obtain a palindrome (909909).

The spelling of 3781964 in words is "three million, seven hundred eighty-one thousand, nine hundred sixty-four".