3470778 has 48 divisors (see below), whose sum is σ = 7979400. Its totient is φ = 1088640.

The previous prime is 3470743. The next prime is 3470821. The reversal of 3470778 is 8770743.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2424249 + 1046529 = 1557^2 + 1023^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31788 + ... + 31896.

Almost surely, 2^3470778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3470778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3989700).

3470778 is an abundant number, since it is smaller than the sum of its proper divisors (4508622).

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

3470778 is a wasteful number, since it uses less digits than its factorization.

3470778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 3470778 is about 1863.0024154574. The cubic root of 3470778 is about 151.4057185503.

The spelling of 3470778 in words is "three million, four hundred seventy thousand, seven hundred seventy-eight".