3497742 has 28 divisors (see below), whose sum is σ = 7869600. Its totient is φ = 1165428.

The previous prime is 3497717. The next prime is 3497743. The reversal of 3497742 is 2477943.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 3497697 and 3497706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 259 + ... + 2657.

Almost surely, 2^3497742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3497742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3934800).

3497742 is an abundant number, since it is smaller than the sum of its proper divisors (4371858).

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

3497742 is an equidigital number, since it uses as much as digits as its factorization.

3497742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2404 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3497742 is about 1870.2251201393. The cubic root of 3497742 is about 151.7967910084.

The spelling of 3497742 in words is "three million, four hundred ninety-seven thousand, seven hundred forty-two".