3416721 has 24 divisors (see below), whose sum is σ = 5783904. Its totient is φ = 1774080.

The previous prime is 3416717. The next prime is 3416731. The reversal of 3416721 is 1276143.

It is not a de Polignac number, because 3416721 - 2² = 3416717 is a prime.

It is an Ulam number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3416691 and 3416700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3416701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 561 + ... + 2673.

It is an arithmetic number, because the mean of its divisors is an integer number (240996).

Almost surely, 2^3416721 is an apocalyptic number.

It is an amenable number.

3416721 is a deficient number, since it is larger than the sum of its proper divisors (2367183).

3416721 is a wasteful number, since it uses less digits than its factorization.

3416721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141 (or 2134 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 3416721 is about 1848.4374482249. The cubic root of 3416721 is about 150.6155593447.

The spelling of 3416721 in words is "three million, four hundred sixteen thousand, seven hundred twenty-one".