3478000 has 80 divisors (see below), whose sum is σ = 8820864. Its totient is φ = 1324800.

The previous prime is 3477977. The next prime is 3478009. The reversal of 3478000 is 8743.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3478009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73977 + ... + 74023.

Almost surely, 2^3478000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3478000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4410432).

3478000 is an abundant number, since it is smaller than the sum of its proper divisors (5342864).

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

3478000 is a wasteful number, since it uses less digits than its factorization.

3478000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3478000 is about 1864.9396773086. The cubic root of 3478000 is about 151.5106608770.

The spelling of 3478000 in words is "three million, four hundred seventy-eight thousand".