3782638 has 4 divisors (see below), whose sum is σ = 5673960. Its totient is φ = 1891318.

The previous prime is 3782629. The next prime is 3782657. The reversal of 3782638 is 8362873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8362873 = 67 ⋅124819.

It is a junction number, because it is equal to n+sod(n) for n = 3782597 and 3782606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945658 + ... + 945661.

It is an arithmetic number, because the mean of its divisors is an integer number (1418490).

Almost surely, 2^3782638 is an apocalyptic number.

3782638 is a deficient number, since it is larger than the sum of its proper divisors (1891322).

3782638 is a wasteful number, since it uses less digits than its factorization.

3782638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891321.

The product of its digits is 48384, while the sum is 37.

The square root of 3782638 is about 1944.9005115944. The cubic root of 3782638 is about 155.8110521936.

The spelling of 3782638 in words is "three million, seven hundred eighty-two thousand, six hundred thirty-eight".