3781798 has 16 divisors (see below), whose sum is σ = 6232320. Its totient is φ = 1713096.

The previous prime is 3781781. The next prime is 3781801. The reversal of 3781798 is 8971873.

It is a super-2 number, since 2×3781798² = 28603992225608, which contains 22 as substring.

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, 1290 + ... + 3037.

It is an arithmetic number, because the mean of its divisors is an integer number (389520).

Almost surely, 2^3781798 is an apocalyptic number.

3781798 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3781798 is a deficient number, since it is larger than the sum of its proper divisors (2450522).

3781798 is a wasteful number, since it uses less digits than its factorization.

3781798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371.

The product of its digits is 84672, while the sum is 43.

The square root of 3781798 is about 1944.6845502549. The cubic root of 3781798 is about 155.7995178294.

The spelling of 3781798 in words is "three million, seven hundred eighty-one thousand, seven hundred ninety-eight".