1994671 has 8 divisors (see below), whose sum is σ = 2309120. Its totient is φ = 1687608.

The previous prime is 1994669. The next prime is 1994687. The reversal of 1994671 is 1764991.

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 1994671 - 2¹ = 1994669 is a prime.

It is a super-5 number, since 5×1994671⁵ (a number of 33 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1994671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994621) 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, 1251 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (288640).

2^1994671 is an apocalyptic number.

1994671 is a deficient number, since it is larger than the sum of its proper divisors (314449).

1994671 is an equidigital number, since it uses as much as digits as its factorization.

1994671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693.

The product of its digits is 13608, while the sum is 37.

The square root of 1994671 is about 1412.3282196430. The cubic root of 1994671 is about 125.8801034666.

The spelling of 1994671 in words is "one million, nine hundred ninety-four thousand, six hundred seventy-one".