3497920 has 56 divisors (see below), whose sum is σ = 8833104. Its totient is φ = 1314816.

The previous prime is 3497911. The next prime is 3497929. The reversal of 3497920 is 297943.

It is an interprime number because it is at equal distance from previous prime (3497911) and next prime (3497929).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (157734).

Almost surely, 2^3497920 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 3497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4416552).

3497920 is an abundant number, since it is smaller than the sum of its proper divisors (5335184).

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

3497920 is a wasteful number, since it uses less digits than its factorization.

3497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 3497920 is about 1870.2727073879. The cubic root of 3497920 is about 151.7993659430.

The spelling of 3497920 in words is "three million, four hundred ninety-seven thousand, nine hundred twenty".