3549878 has 4 divisors (see below), whose sum is σ = 5324820. Its totient is φ = 1774938.

The previous prime is 3549877. The next prime is 3549881. The reversal of 3549878 is 8789453.

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

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 4 + 9 + 8 + 7⁴ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 887468 + ... + 887471.

It is an arithmetic number, because the mean of its divisors is an integer number (1331205).

Almost surely, 2^3549878 is an apocalyptic number.

3549878 is a deficient number, since it is larger than the sum of its proper divisors (1774942).

3549878 is a wasteful number, since it uses less digits than its factorization.

3549878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774941.

The product of its digits is 241920, while the sum is 44.

The square root of 3549878 is about 1884.1119924251. Note that the first 3 decimals coincide. The cubic root of 3549878 is about 152.5472826600.

The spelling of 3549878 in words is "three million, five hundred forty-nine thousand, eight hundred seventy-eight".