3170421 has 14 divisors (see below), whose sum is σ = 4754550. Its totient is φ = 2113128.

The previous prime is 3170417. The next prime is 3170423. The reversal of 3170421 is 1240713.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 1347921 = 1350^2 + 1161^2 .

It is not a de Polignac number, because 3170421 - 2² = 3170417 is a prime.

It is a Curzon number.

3170421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3170394 and 3170403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3170423) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1446 + ... + 2903.

Almost surely, 2^3170421 is an apocalyptic number.

It is an amenable number.

3170421 is a deficient number, since it is larger than the sum of its proper divisors (1584129).

3170421 is an frugal number, since it uses more digits than its factorization.

3170421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367 (or 4352 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 3170421 is about 1780.5676061301. The cubic root of 3170421 is about 146.9058122168.

The spelling of 3170421 in words is "three million, one hundred seventy thousand, four hundred twenty-one".