3781336 has 32 divisors (see below), whose sum is σ = 7731360. Its totient is φ = 1723392.

The previous prime is 3781313. The next prime is 3781367. The reversal of 3781336 is 6331873.

It is a junction number, because it is equal to n+sod(n) for n = 3781298 and 3781307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10536 + ... + 10888.

It is an arithmetic number, because the mean of its divisors is an integer number (241605).

Almost surely, 2^3781336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3781336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3865680).

3781336 is an abundant number, since it is smaller than the sum of its proper divisors (3950024).

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

3781336 is a wasteful number, since it uses less digits than its factorization.

3781336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 471 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 3781336 is about 1944.5657612948. The cubic root of 3781336 is about 155.7931732010.

The spelling of 3781336 in words is "three million, seven hundred eighty-one thousand, three hundred thirty-six".