3609778 has 8 divisors (see below), whose sum is σ = 5431068. Its totient is φ = 1799424.

The previous prime is 3609773. The next prime is 3609787. The reversal of 3609778 is 8779063.

3609778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3087049 + 522729 = 1757^2 + 723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3609778.

It is not an unprimeable number, because it can be changed into a prime (3609773) 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 3 ways as a sum of consecutive naturals, for example, 1851 + ... + 3262.

Almost surely, 2^3609778 is an apocalyptic number.

3609778 is a deficient number, since it is larger than the sum of its proper divisors (1821290).

3609778 is a wasteful number, since it uses less digits than its factorization.

3609778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468.

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

The square root of 3609778 is about 1899.9415780492. The cubic root of 3609778 is about 153.4005198108.

The spelling of 3609778 in words is "three million, six hundred nine thousand, seven hundred seventy-eight".