3788981 has 4 divisors (see below), whose sum is σ = 4330272. Its totient is φ = 3247692.

The previous prime is 3788969. The next prime is 3788989. The reversal of 3788981 is 1898873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-3788981 is a prime.

It is a super-2 number, since 2×3788981² = 28712754036722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788989) 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, 270635 + ... + 270648.

It is an arithmetic number, because the mean of its divisors is an integer number (1082568).

Almost surely, 2^3788981 is an apocalyptic number.

It is an amenable number.

3788981 is a deficient number, since it is larger than the sum of its proper divisors (541291).

3788981 is an equidigital number, since it uses as much as digits as its factorization.

3788981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541290.

The product of its digits is 96768, while the sum is 44.

The square root of 3788981 is about 1946.5305032288. The cubic root of 3788981 is about 155.8980952920.

The spelling of 3788981 in words is "three million, seven hundred eighty-eight thousand, nine hundred eighty-one".