3719988 has 18 divisors (see below), whose sum is σ = 9403394. Its totient is φ = 1239984.

The previous prime is 3719987. The next prime is 3719993. The reversal of 3719988 is 8899173.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 79524 = 1908^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3719981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51631 + ... + 51702.

Almost surely, 2^3719988 is an apocalyptic number.

It is an amenable number.

3719988 is an abundant number, since it is smaller than the sum of its proper divisors (5683406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3719988 is a wasteful number, since it uses less digits than its factorization.

3719988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103343 (or 103338 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 3719988 is about 1928.7270413410. The cubic root of 3719988 is about 154.9460512909.

The spelling of 3719988 in words is "three million, seven hundred nineteen thousand, nine hundred eighty-eight".