1672445 has 8 divisors (see below), whose sum is σ = 2094336. Its totient is φ = 1279696.

The previous prime is 1672441. The next prime is 1672453. The reversal of 1672445 is 5442761.

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

It is a cyclic number.

It is not a de Polignac number, because 1672445 - 2² = 1672441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672441) 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, 7157 + ... + 7386.

It is an arithmetic number, because the mean of its divisors is an integer number (261792).

2^1672445 is an apocalyptic number.

It is an amenable number.

1672445 is a deficient number, since it is larger than the sum of its proper divisors (421891).

1672445 is a wasteful number, since it uses less digits than its factorization.

1672445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14571.

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

The square root of 1672445 is about 1293.2304512344. The cubic root of 1672445 is about 118.6999715395.

The spelling of 1672445 in words is "one million, six hundred seventy-two thousand, four hundred forty-five".