3781086 has 8 divisors (see below), whose sum is σ = 7562184. Its totient is φ = 1260360.

The previous prime is 3781079. The next prime is 3781087. The reversal of 3781086 is 6801873.

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

3781086 is an admirable number.

It is a super-2 number, since 2×3781086² = 28593222678792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781087) 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, 315085 + ... + 315096.

It is an arithmetic number, because the mean of its divisors is an integer number (945273).

Almost surely, 2^3781086 is an apocalyptic number.

3781086 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.

3781086 is a wasteful number, since it uses less digits than its factorization.

3781086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630186.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 3781086 is about 1944.5014785286. The cubic root of 3781086 is about 155.7897397451.

The spelling of 3781086 in words is "three million, seven hundred eighty-one thousand, eighty-six".