3607978 has 24 divisors (see below), whose sum is σ = 6305796. Its totient is φ = 1541760.

The previous prime is 3607973. The next prime is 3607979. The reversal of 3607978 is 8797063.

It can be written as a sum of positive squares in 2 ways, for example, as 3214849 + 393129 = 1793^2 + 627^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3607978.

It is not an unprimeable number, because it can be changed into a prime (3607973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3676 + ... + 4552.

Almost surely, 2^3607978 is an apocalyptic number.

3607978 is a deficient number, since it is larger than the sum of its proper divisors (2697818).

3607978 is a wasteful number, since it uses less digits than its factorization.

3607978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 3607978 is about 1899.4678202065. The cubic root of 3607978 is about 153.3750180723.

It can be divided in two parts, 360 and 7978, that added together give a palindrome (8338).

The spelling of 3607978 in words is "three million, six hundred seven thousand, nine hundred seventy-eight".