797121437 has 8 divisors (see below), whose sum is σ = 911301696. Its totient is φ = 683017632.

The previous prime is 797121433. The next prime is 797121503. The reversal of 797121437 is 734121797.

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 797121437 - 2² = 797121433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 797121394 and 797121403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797121433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318 + ... + 40280.

It is an arithmetic number, because the mean of its divisors is an integer number (113912712).

Almost surely, 2^797121437 is an apocalyptic number.

It is an amenable number.

797121437 is a deficient number, since it is larger than the sum of its proper divisors (114180259).

797121437 is a wasteful number, since it uses less digits than its factorization.

797121437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38227.

The product of its digits is 74088, while the sum is 41.

The square root of 797121437 is about 28233.3391046826. The cubic root of 797121437 is about 927.2030031129.

The spelling of 797121437 in words is "seven hundred ninety-seven million, one hundred twenty-one thousand, four hundred thirty-seven".