3786520 has 32 divisors (see below), whose sum is σ = 8583120. Its totient is φ = 1503360.

The previous prime is 3786511. The next prime is 3786521. The reversal of 3786520 is 256873.

3786520 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3786521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6979 + ... + 7501.

Almost surely, 2^3786520 is an apocalyptic number.

It is an amenable number.

3786520 is an abundant number, since it is smaller than the sum of its proper divisors (4796600).

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

3786520 is a wasteful number, since it uses less digits than its factorization.

3786520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3786520 is about 1945.8982501662. The cubic root of 3786520 is about 155.8643352645.

The spelling of 3786520 in words is "three million, seven hundred eighty-six thousand, five hundred twenty".