3765678 has 16 divisors (see below), whose sum is σ = 8607360. Its totient is φ = 1075896.

The previous prime is 3765673. The next prime is 3765689. The reversal of 3765678 is 8765673.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 89659 = 3765678 / (3 + 7 + 6 + 5 + 6 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3765673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44788 + ... + 44871.

It is an arithmetic number, because the mean of its divisors is an integer number (537960).

Almost surely, 2^3765678 is an apocalyptic number.

3765678 is an abundant number, since it is smaller than the sum of its proper divisors (4841682).

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

3765678 is a wasteful number, since it uses less digits than its factorization.

3765678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89671.

The product of its digits is 211680, while the sum is 42.

The square root of 3765678 is about 1940.5354931049. The cubic root of 3765678 is about 155.5778362265.

It can be divided in two parts, 3765 and 678, that multiplied together give a triangular number (2552670 = T₂₂₅₉).

The spelling of 3765678 in words is "three million, seven hundred sixty-five thousand, six hundred seventy-eight".