1797338139 has 16 divisors (see below), whose sum is σ = 2452219392. Its totient is φ = 1170440928.

The previous prime is 1797338129. The next prime is 1797338161. The reversal of 1797338139 is 9318337971.

It is not a de Polignac number, because 1797338139 - 2⁹ = 1797337627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1797338091 and 1797338100.

It is not an unprimeable number, because it can be changed into a prime (1797338129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61557 + ... + 85929.

It is an arithmetic number, because the mean of its divisors is an integer number (153263712).

Almost surely, 2^1797338139 is an apocalyptic number.

1797338139 is a deficient number, since it is larger than the sum of its proper divisors (654881253).

1797338139 is a wasteful number, since it uses less digits than its factorization.

1797338139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24946.

The product of its digits is 857304, while the sum is 51.

The square root of 1797338139 is about 42395.0249321781. The cubic root of 1797338139 is about 1215.8404745409.

The spelling of 1797338139 in words is "one billion, seven hundred ninety-seven million, three hundred thirty-eight thousand, one hundred thirty-nine".