1672205 has 16 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 1240320.

The previous prime is 1672199. The next prime is 1672219. The reversal of 1672205 is 5022761.

It is not a de Polignac number, because 1672205 - 2¹⁴ = 1655821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8660 + ... + 8850.

It is an arithmetic number, because the mean of its divisors is an integer number (134784).

2^1672205 is an apocalyptic number.

It is an amenable number.

1672205 is a deficient number, since it is larger than the sum of its proper divisors (484339).

1672205 is a wasteful number, since it uses less digits than its factorization.

1672205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1672205 is about 1293.1376570188. The cubic root of 1672205 is about 118.6942933545.

Adding to 1672205 its reverse (5022761), we get a palindrome (6694966).

The spelling of 1672205 in words is "one million, six hundred seventy-two thousand, two hundred five".