3721782 has 8 divisors (see below), whose sum is σ = 7443576. Its totient is φ = 1240592.

The previous prime is 3721771. The next prime is 3721787. The reversal of 3721782 is 2871273.

3721782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

3721782 is an admirable number.

It is a super-2 number, since 2×3721782² = 27703322511048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721787) 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 3 ways as a sum of consecutive naturals, for example, 310143 + ... + 310154.

It is an arithmetic number, because the mean of its divisors is an integer number (930447).

Almost surely, 2^3721782 is an apocalyptic number.

3721782 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3721782 is a wasteful number, since it uses less digits than its factorization.

3721782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620302.

The product of its digits is 4704, while the sum is 30.

The square root of 3721782 is about 1929.1920588682. The cubic root of 3721782 is about 154.9709553625.

The spelling of 3721782 in words is "three million, seven hundred twenty-one thousand, seven hundred eighty-two".