3876981 has 8 divisors (see below), whose sum is σ = 5347680. Its totient is φ = 2495472.

The previous prime is 3876979. The next prime is 3876991. The reversal of 3876981 is 1896783.

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

It is not a de Polignac number, because 3876981 - 2¹ = 3876979 is a prime.

It is a super-2 number, since 2×3876981² = 30061963348722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876941) 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, 22195 + ... + 22368.

It is an arithmetic number, because the mean of its divisors is an integer number (668460).

Almost surely, 2^3876981 is an apocalyptic number.

It is an amenable number.

3876981 is a deficient number, since it is larger than the sum of its proper divisors (1470699).

3876981 is a wasteful number, since it uses less digits than its factorization.

3876981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44595.

The product of its digits is 72576, while the sum is 42.

The square root of 3876981 is about 1969.0050787136. The cubic root of 3876981 is about 157.0957939740.

The spelling of 3876981 in words is "three million, eight hundred seventy-six thousand, nine hundred eighty-one".