1672890 has 16 divisors (see below), whose sum is σ = 4015008. Its totient is φ = 446096.

The previous prime is 1672889. The next prime is 1672897. The reversal of 1672890 is 982761.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1672897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27852 + ... + 27911.

It is an arithmetic number, because the mean of its divisors is an integer number (250938).

2^1672890 is an apocalyptic number.

1672890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1672890 is an abundant number, since it is smaller than the sum of its proper divisors (2342118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1672890 is a wasteful number, since it uses less digits than its factorization.

1672890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55773.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1672890 is about 1293.4024895600. The cubic root of 1672890 is about 118.7104984035.

The spelling of 1672890 in words is "one million, six hundred seventy-two thousand, eight hundred ninety".