1874721 has 8 divisors (see below), whose sum is σ = 2530080. Its totient is φ = 1234592.

The previous prime is 1874699. The next prime is 1874723. The reversal of 1874721 is 1274781.

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

It is a cyclic number.

It is not a de Polignac number, because 1874721 - 2⁶ = 1874657 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1874723) 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, 3516 + ... + 4013.

It is an arithmetic number, because the mean of its divisors is an integer number (316260).

2^1874721 is an apocalyptic number.

It is an amenable number.

1874721 is a deficient number, since it is larger than the sum of its proper divisors (655359).

1874721 is an equidigital number, since it uses as much as digits as its factorization.

1874721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its digits is 3136, while the sum is 30.

The square root of 1874721 is about 1369.2045135771. The cubic root of 1874721 is about 123.3044872072.

The spelling of 1874721 in words is "one million, eight hundred seventy-four thousand, seven hundred twenty-one".