1673881 has 8 divisors (see below), whose sum is σ = 1922400. Its totient is φ = 1441440.

The previous prime is 1673857. The next prime is 1673897. The reversal of 1673881 is 1883761.

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

It is not a de Polignac number, because 1673881 - 2⁵ = 1673849 is a prime.

It is a super-2 number, since 2×1673881² = 5603755204322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673831) 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, 3796 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (240300).

2^1673881 is an apocalyptic number.

1673881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1673881 is a deficient number, since it is larger than the sum of its proper divisors (248519).

1673881 is a wasteful number, since it uses less digits than its factorization.

1673881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039.

The product of its digits is 8064, while the sum is 34.

The square root of 1673881 is about 1293.7855309131. The cubic root of 1673881 is about 118.7339346688.

The spelling of 1673881 in words is "one million, six hundred seventy-three thousand, eight hundred eighty-one".