3496921 has 4 divisors (see below), whose sum is σ = 3503412. Its totient is φ = 3490432.

The previous prime is 3496901. The next prime is 3496937. The reversal of 3496921 is 1296943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1296943 = 79 ⋅16417.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 741321 = 1660^2 + 861^2 .

It is a cyclic number.

It is not a de Polignac number, because 3496921 - 2¹⁷ = 3365849 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3496901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (875853).

Almost surely, 2^3496921 is an apocalyptic number.

It is an amenable number.

3496921 is a deficient number, since it is larger than the sum of its proper divisors (6491).

3496921 is an equidigital number, since it uses as much as digits as its factorization.

3496921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490.

The product of its digits is 11664, while the sum is 34.

The square root of 3496921 is about 1870.0056149648. The cubic root of 3496921 is about 151.7849133535.

The spelling of 3496921 in words is "three million, four hundred ninety-six thousand, nine hundred twenty-one".