3477978 has 40 divisors (see below), whose sum is σ = 8909472. Its totient is φ = 993384.

The previous prime is 3477977. The next prime is 3478009. The reversal of 3477978 is 8797743.

3477978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3477973) 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 19 ways as a sum of consecutive naturals, for example, 400 + ... + 2667.

Almost surely, 2^3477978 is an apocalyptic number.

3477978 is an abundant number, since it is smaller than the sum of its proper divisors (5431494).

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

3477978 is a wasteful number, since it uses less digits than its factorization.

3477978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3079 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 3477978 is about 1864.9337789852. The cubic root of 3477978 is about 151.5103414174.

The spelling of 3477978 in words is "three million, four hundred seventy-seven thousand, nine hundred seventy-eight".