3654786 has 32 divisors (see below), whose sum is σ = 7627968. Its totient is φ = 1166400.

The previous prime is 3654757. The next prime is 3654787. The reversal of 3654786 is 6874563.

It is not an unprimeable number, because it can be changed into a prime (3654787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22341 + ... + 22503.

It is an arithmetic number, because the mean of its divisors is an integer number (238374).

Almost surely, 2^3654786 is an apocalyptic number.

3654786 is an abundant number, since it is smaller than the sum of its proper divisors (3973182).

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

3654786 is a wasteful number, since it uses less digits than its factorization.

3654786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its digits is 120960, while the sum is 39.

The square root of 3654786 is about 1911.7494605727. The cubic root of 3654786 is about 154.0354390807.

It can be divided in two parts, 365 and 4786, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 3654786 in words is "three million, six hundred fifty-four thousand, seven hundred eighty-six".