3497220 has 36 divisors (see below), whose sum is σ = 10608780. Its totient is φ = 932544.

The previous prime is 3497213. The next prime is 3497227. The reversal of 3497220 is 227943.

It is an interprime number because it is at equal distance from previous prime (3497213) and next prime (3497227).

It can be written as a sum of positive squares in 2 ways, for example, as 427716 + 3069504 = 654^2 + 1752^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3497227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9535 + ... + 9894.

Almost surely, 2^3497220 is an apocalyptic number.

3497220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3497220 is an abundant number, since it is smaller than the sum of its proper divisors (7111560).

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

3497220 is a wasteful number, since it uses less digits than its factorization.

3497220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19444 (or 19439 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3497220 is about 1870.0855595400. The cubic root of 3497220 is about 151.7892392920.

It can be divided in two parts, 349 and 7220, that added together give a square (7569 = 87²).

The spelling of 3497220 in words is "three million, four hundred ninety-seven thousand, two hundred twenty".