1673541 has 24 divisors (see below), whose sum is σ = 2568384. Its totient is φ = 1088640.

The previous prime is 1673527. The next prime is 1673543. The reversal of 1673541 is 1453761.

It is not a de Polignac number, because 1673541 - 2⁵ = 1673509 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17205 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (107016).

2^1673541 is an apocalyptic number.

It is an amenable number.

1673541 is a deficient number, since it is larger than the sum of its proper divisors (894843).

1673541 is an frugal number, since it uses more digits than its factorization.

1673541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 171 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1673541 is about 1293.6541268825. The cubic root of 1673541 is about 118.7258950149.

The spelling of 1673541 in words is "one million, six hundred seventy-three thousand, five hundred forty-one".