3420873 has 20 divisors (see below), whose sum is σ = 5161860. Its totient is φ = 2257632.

The previous prime is 3420871. The next prime is 3420877. The reversal of 3420873 is 3780243.

It can be written as a sum of positive squares in 2 ways, for example, as 558009 + 2862864 = 747^2 + 1692^2 .

It is not a de Polignac number, because 3420873 - 2¹ = 3420871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3420871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12583 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (258093).

Almost surely, 2^3420873 is an apocalyptic number.

It is an amenable number.

3420873 is a deficient number, since it is larger than the sum of its proper divisors (1740987).

3420873 is a wasteful number, since it uses less digits than its factorization.

3420873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3420873 is about 1849.5602179978. The cubic root of 3420873 is about 150.6765440005.

The spelling of 3420873 in words is "three million, four hundred twenty thousand, eight hundred seventy-three".