3496821 has 8 divisors (see below), whose sum is σ = 4728384. Its totient is φ = 2298240.

The previous prime is 3496811. The next prime is 3496841. The reversal of 3496821 is 1286943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3496821 - 2⁵ = 3496789 is a prime.

3496821 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3496811) 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, 7996 + ... + 8421.

It is an arithmetic number, because the mean of its divisors is an integer number (591048).

Almost surely, 2^3496821 is an apocalyptic number.

It is an amenable number.

3496821 is a deficient number, since it is larger than the sum of its proper divisors (1231563).

3496821 is a wasteful number, since it uses less digits than its factorization.

3496821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491.

The product of its digits is 10368, while the sum is 33.

The square root of 3496821 is about 1869.9788768860. The cubic root of 3496821 is about 151.7834664963.

The spelling of 3496821 in words is "three million, four hundred ninety-six thousand, eight hundred twenty-one".