1674421 has 8 divisors (see below), whose sum is σ = 1923264. Its totient is φ = 1428000.

The previous prime is 1674391. The next prime is 1674433. The reversal of 1674421 is 1244761.

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

It is a de Polignac number, because none of the positive numbers 2^k-1674421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1674461) 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, 1281 + ... + 2233.

It is an arithmetic number, because the mean of its divisors is an integer number (240408).

2^1674421 is an apocalyptic number.

It is an amenable number.

1674421 is a deficient number, since it is larger than the sum of its proper divisors (248843).

1674421 is an equidigital number, since it uses as much as digits as its factorization.

1674421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its digits is 1344, while the sum is 25.

The square root of 1674421 is about 1293.9942040056. The cubic root of 1674421 is about 118.7467012934.

The spelling of 1674421 in words is "one million, six hundred seventy-four thousand, four hundred twenty-one".