1974729 has 8 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 1311056.

The previous prime is 1974719. The next prime is 1974743. The reversal of 1974729 is 9274791.

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 1974729 - 2²⁰ = 926153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1974719) 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, 417 + ... + 2030.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

2^1974729 is an apocalyptic number.

It is an amenable number.

1974729 is a deficient number, since it is larger than the sum of its proper divisors (669111).

1974729 is a wasteful number, since it uses less digits than its factorization.

1974729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719.

The product of its digits is 31752, while the sum is 39.

The square root of 1974729 is about 1405.2505114747. The cubic root of 1974729 is about 125.4591963772.

The spelling of 1974729 in words is "one million, nine hundred seventy-four thousand, seven hundred twenty-nine".