1797448043 has 4 divisors (see below), whose sum is σ = 1859429040. Its totient is φ = 1735467048.

The previous prime is 1797448033. The next prime is 1797448067. The reversal of 1797448043 is 3408447971.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3408447971 = 127 ⋅26838173.

It is a cyclic number.

It is not a de Polignac number, because 1797448043 - 2⁴ = 1797448027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1797448033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30990455 + ... + 30990512.

It is an arithmetic number, because the mean of its divisors is an integer number (464857260).

Almost surely, 2^1797448043 is an apocalyptic number.

1797448043 is a deficient number, since it is larger than the sum of its proper divisors (61980997).

1797448043 is an equidigital number, since it uses as much as digits as its factorization.

1797448043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61980996.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 1797448043 is about 42396.3211021900. The cubic root of 1797448043 is about 1215.8652561898.

The spelling of 1797448043 in words is "one billion, seven hundred ninety-seven million, four hundred forty-eight thousand, forty-three".