1672845 has 16 divisors (see below), whose sum is σ = 2693760. Its totient is φ = 886464.

The previous prime is 1672799. The next prime is 1672849. The reversal of 1672845 is 5482761.

It is not a de Polignac number, because 1672845 - 2¹³ = 1664653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3192 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (168360).

2^1672845 is an apocalyptic number.

1672845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672845 is a deficient number, since it is larger than the sum of its proper divisors (1020915).

1672845 is a wasteful number, since it uses less digits than its factorization.

1672845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its digits is 13440, while the sum is 33.

The square root of 1672845 is about 1293.3850934660. The cubic root of 1672845 is about 118.7094339740.

The spelling of 1672845 in words is "one million, six hundred seventy-two thousand, eight hundred forty-five".