3420831 has 8 divisors (see below), whose sum is σ = 4570240. Its totient is φ = 2275992.

The previous prime is 3420829. The next prime is 3420839. The reversal of 3420831 is 1380243.

It is a happy number.

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

It is not a de Polignac number, because 3420831 - 2¹ = 3420829 is a prime.

It is a super-2 number, since 2×3420831² = 23404169461122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3420798 and 3420807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420839) 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, 1446 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (571280).

Almost surely, 2^3420831 is an apocalyptic number.

3420831 is a deficient number, since it is larger than the sum of its proper divisors (1149409).

3420831 is a wasteful number, since it uses less digits than its factorization.

3420831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3420831 is about 1849.5488639125. The cubic root of 3420831 is about 150.6759273508.

The spelling of 3420831 in words is "three million, four hundred twenty thousand, eight hundred thirty-one".