1974893 has 4 divisors (see below), whose sum is σ = 2016960. Its totient is φ = 1932828.

The previous prime is 1974887. The next prime is 1974919. The reversal of 1974893 is 3984791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1974893 is a prime.

It is a super-2 number, since 2×1974893² = 7800404722898, which contains 22 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 1974893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20963 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (504240).

2^1974893 is an apocalyptic number.

It is an amenable number.

1974893 is a deficient number, since it is larger than the sum of its proper divisors (42067).

1974893 is an equidigital number, since it uses as much as digits as its factorization.

1974893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42066.

The product of its digits is 54432, while the sum is 41.

The square root of 1974893 is about 1405.3088628483. The cubic root of 1974893 is about 125.4626693835.

The spelling of 1974893 in words is "one million, nine hundred seventy-four thousand, eight hundred ninety-three".