3616978 has 4 divisors (see below), whose sum is σ = 5425470. Its totient is φ = 1808488.

The previous prime is 3616969. The next prime is 3616993. The reversal of 3616978 is 8796163.

3616978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3545689 + 71289 = 1883^2 + 267^2 .

It is a super-3 number, since 3×3616978³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3616978.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 904243 + ... + 904246.

Almost surely, 2^3616978 is an apocalyptic number.

3616978 is a deficient number, since it is larger than the sum of its proper divisors (1808492).

3616978 is a wasteful number, since it uses less digits than its factorization.

3616978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808491.

The product of its digits is 54432, while the sum is 40.

The square root of 3616978 is about 1901.8354292630. The cubic root of 3616978 is about 153.5024420737.

The spelling of 3616978 in words is "three million, six hundred sixteen thousand, nine hundred seventy-eight".