3478722 has 32 divisors (see below), whose sum is σ = 7582848. Its totient is φ = 1057536.

The previous prime is 3478721. The next prime is 3478747. The reversal of 3478722 is 2278743.

It is a super-3 number, since 3×3478722³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3478721) 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, 7818 + ... + 8250.

It is an arithmetic number, because the mean of its divisors is an integer number (236964).

Almost surely, 2^3478722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3478722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3791424).

3478722 is an abundant number, since it is smaller than the sum of its proper divisors (4104126).

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

3478722 is a wasteful number, since it uses less digits than its factorization.

3478722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its digits is 18816, while the sum is 33.

The square root of 3478722 is about 1865.1332392084. The cubic root of 3478722 is about 151.5211442131.

The spelling of 3478722 in words is "three million, four hundred seventy-eight thousand, seven hundred twenty-two".