1974287 has 8 divisors (see below), whose sum is σ = 2282400. Its totient is φ = 1672704.

The previous prime is 1974277. The next prime is 1974299. The reversal of 1974287 is 7824791.

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 1974287 - 2¹⁴ = 1957903 is a prime.

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 1974287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974277) 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, 962 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (285300).

2^1974287 is an apocalyptic number.

1974287 is a deficient number, since it is larger than the sum of its proper divisors (308113).

1974287 is an equidigital number, since it uses as much as digits as its factorization.

1974287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265.

The product of its digits is 28224, while the sum is 38.

The square root of 1974287 is about 1405.0932353406. The cubic root of 1974287 is about 125.4498352442.

The spelling of 1974287 in words is "one million, nine hundred seventy-four thousand, two hundred eighty-seven".