3781955 has 8 divisors (see below), whose sum is σ = 4661232. Its totient is φ = 2943648.

The previous prime is 3781951. The next prime is 3781961. The reversal of 3781955 is 5591873.

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

It is a cyclic number.

It is not a de Polignac number, because 3781955 - 2² = 3781951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3781951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10037 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (582654).

Almost surely, 2^3781955 is an apocalyptic number.

3781955 is a deficient number, since it is larger than the sum of its proper divisors (879277).

3781955 is a wasteful number, since it uses less digits than its factorization.

3781955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20485.

The product of its digits is 37800, while the sum is 38.

The square root of 3781955 is about 1944.7249162799. The cubic root of 3781955 is about 155.8016737867.

The spelling of 3781955 in words is "three million, seven hundred eighty-one thousand, nine hundred fifty-five".