3821718 has 8 divisors (see below), whose sum is σ = 7643448. Its totient is φ = 1273904.

The previous prime is 3821689. The next prime is 3821723. The reversal of 3821718 is 8171283.

It is a happy number.

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

3821718 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318471 + ... + 318482.

It is an arithmetic number, because the mean of its divisors is an integer number (955431).

Almost surely, 2^3821718 is an apocalyptic number.

3821718 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.

3821718 is a wasteful number, since it uses less digits than its factorization.

3821718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636958.

The product of its digits is 2688, while the sum is 30.

The square root of 3821718 is about 1954.9214817992. The cubic root of 3821718 is about 156.3457976806.

The spelling of 3821718 in words is "three million, eight hundred twenty-one thousand, seven hundred eighteen".