2873405 has 8 divisors (see below), whose sum is σ = 3504984. Its totient is φ = 2260800.

The previous prime is 2873401. The next prime is 2873417. The reversal of 2873405 is 5043782.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13924 + 2859481 = 118^2 + 1691^2 .

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

It is not a de Polignac number, because 2873405 - 2² = 2873401 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2873401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406 + ... + 5015.

It is an arithmetic number, because the mean of its divisors is an integer number (438123).

2^2873405 is an apocalyptic number.

It is an amenable number.

2873405 is a deficient number, since it is larger than the sum of its proper divisors (631579).

2873405 is an equidigital number, since it uses as much as digits as its factorization.

2873405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2873405 is about 1695.1120906890. The cubic root of 2873405 is about 142.1670486626.

The spelling of 2873405 in words is "two million, eight hundred seventy-three thousand, four hundred five".