3786428 has 6 divisors (see below), whose sum is σ = 6626256. Its totient is φ = 1893212.

The previous prime is 3786413. The next prime is 3786449. The reversal of 3786428 is 8246873.

It is a junction number, because it is equal to n+sod(n) for n = 3786391 and 3786400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473300 + ... + 473307.

It is an arithmetic number, because the mean of its divisors is an integer number (1104376).

Almost surely, 2^3786428 is an apocalyptic number.

It is an amenable number.

3786428 is a deficient number, since it is larger than the sum of its proper divisors (2839828).

3786428 is a wasteful number, since it uses less digits than its factorization.

3786428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946611 (or 946609 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 3786428 is about 1945.8746105543. The cubic root of 3786428 is about 155.8630729238.

The spelling of 3786428 in words is "three million, seven hundred eighty-six thousand, four hundred twenty-eight".