1797047493 has 8 divisors (see below), whose sum is σ = 2522172000. Its totient is φ = 1134977328.

The previous prime is 1797047479. The next prime is 1797047557. The reversal of 1797047493 is 3947407971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1797047493 - 2¹³ = 1797039301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797047393) 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, 15763518 + ... + 15763631.

It is an arithmetic number, because the mean of its divisors is an integer number (315271500).

Almost surely, 2^1797047493 is an apocalyptic number.

It is an amenable number.

1797047493 is a deficient number, since it is larger than the sum of its proper divisors (725124507).

1797047493 is a wasteful number, since it uses less digits than its factorization.

1797047493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31527171.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 1797047493 is about 42391.5969621339. The cubic root of 1797047493 is about 1215.7749335032.

The spelling of 1797047493 in words is "one billion, seven hundred ninety-seven million, forty-seven thousand, four hundred ninety-three".