3497021 has 6 divisors (see below), whose sum is σ = 3843966. Its totient is φ = 3179000.

The previous prime is 3497003. The next prime is 3497029. The reversal of 3497021 is 1207943.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 121 = 1870^2 + 11^2 .

It is not a de Polignac number, because 3497021 - 2⁶ = 3496957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497029) 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 5 ways as a sum of consecutive naturals, for example, 14330 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (640661).

Almost surely, 2^3497021 is an apocalyptic number.

It is an amenable number.

3497021 is a deficient number, since it is larger than the sum of its proper divisors (346945).

3497021 is a wasteful number, since it uses less digits than its factorization.

3497021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28923 (or 28912 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3497021 is about 1870.0323526613. The cubic root of 3497021 is about 151.7863601831.

The spelling of 3497021 in words is "three million, four hundred ninety-seven thousand, twenty-one".