3871738 has 8 divisors (see below), whose sum is σ = 6254388. Its totient is φ = 1786944.

The previous prime is 3871691. The next prime is 3871759. The reversal of 3871738 is 8371783.

It can be written as a sum of positive squares in 2 ways, for example, as 3508129 + 363609 = 1873^2 + 603^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3871697 and 3871706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74431 + ... + 74482.

Almost surely, 2^3871738 is an apocalyptic number.

3871738 is a deficient number, since it is larger than the sum of its proper divisors (2382650).

3871738 is a wasteful number, since it uses less digits than its factorization.

3871738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148928.

The product of its digits is 28224, while the sum is 37.

The square root of 3871738 is about 1967.6732452315. The cubic root of 3871738 is about 157.0249463382.

The spelling of 3871738 in words is "three million, eight hundred seventy-one thousand, seven hundred thirty-eight".