3478545 has 48 divisors (see below), whose sum is σ = 7163520. Its totient is φ = 1586304.

The previous prime is 3478513. The next prime is 3478561. The reversal of 3478545 is 5458743.

It is not a de Polignac number, because 3478545 - 2⁵ = 3478513 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8301 + ... + 8709.

It is an arithmetic number, because the mean of its divisors is an integer number (149240).

Almost surely, 2^3478545 is an apocalyptic number.

3478545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3478545 is an abundant number, since it is smaller than the sum of its proper divisors (3684975).

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

3478545 is an equidigital number, since it uses as much as digits as its factorization.

3478545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 424 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 3478545 is about 1865.0857889116. The cubic root of 3478545 is about 151.5185743328.

The spelling of 3478545 in words is "three million, four hundred seventy-eight thousand, five hundred forty-five".