1974897 has 6 divisors (see below), whose sum is σ = 2852642. Its totient is φ = 1316592.

The previous prime is 1974887. The next prime is 1974919. The reversal of 1974897 is 7984791.

It can be written as a sum of positive squares in only one way, i.e., 1838736 + 136161 = 1356^2 + 369^2 .

It is not a de Polignac number, because 1974897 - 2⁴ = 1974881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1974887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109708 + ... + 109725.

2^1974897 is an apocalyptic number.

It is an amenable number.

1974897 is a deficient number, since it is larger than the sum of its proper divisors (877745).

1974897 is a wasteful number, since it uses less digits than its factorization.

1974897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219439 (or 219436 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1974897 is about 1405.3102860223. The cubic root of 1974897 is about 125.4627540885.

The spelling of 1974897 in words is "one million, nine hundred seventy-four thousand, eight hundred ninety-seven".