3675978 has 48 divisors (see below), whose sum is σ = 8668296. Its totient is φ = 1121280.

The previous prime is 3675977. The next prime is 3675983. The reversal of 3675978 is 8795763.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3448449 + 227529 = 1857^2 + 477^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3675977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12400 + ... + 12692.

Almost surely, 2^3675978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3675978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4334148).

3675978 is an abundant number, since it is smaller than the sum of its proper divisors (4992318).

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

3675978 is a wasteful number, since it uses less digits than its factorization.

3675978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 356 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 3675978 is about 1917.2840165192. The cubic root of 3675978 is about 154.3325864348.

The spelling of 3675978 in words is "three million, six hundred seventy-five thousand, nine hundred seventy-eight".