1974881 has 2 divisors, whose sum is σ = 1974882. Its totient is φ = 1974880.

The previous prime is 1974851. The next prime is 1974883. The reversal of 1974881 is 1884791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 40000 = 1391^2 + 200^2 .

It is an emirp because it is prime and its reverse (1884791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1974881 - 2¹⁰ = 1973857 is a prime.

It is a super-2 number, since 2×1974881² = 7800309928322, which contains 22 as substring.

Together with 1974883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1974883) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987440 + 987441.

It is an arithmetic number, because the mean of its divisors is an integer number (987441).

2^1974881 is an apocalyptic number.

It is an amenable number.

1974881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974881 is an equidigital number, since it uses as much as digits as its factorization.

1974881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 38.

The square root of 1974881 is about 1405.3045933178. The cubic root of 1974881 is about 125.4624152676.

The spelling of 1974881 in words is "one million, nine hundred seventy-four thousand, eight hundred eighty-one".