797097439 has 16 divisors (see below), whose sum is σ = 827971200. Its totient is φ = 767010816.

The previous prime is 797097421. The next prime is 797097461. The reversal of 797097439 is 934790797.

It is a cyclic number.

It is not a de Polignac number, because 797097439 - 2⁷ = 797097311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 797097439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797097409) 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, 512487 + ... + 514039.

It is an arithmetic number, because the mean of its divisors is an integer number (51748200).

Almost surely, 2^797097439 is an apocalyptic number.

797097439 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

797097439 is a deficient number, since it is larger than the sum of its proper divisors (30873761).

797097439 is a wasteful number, since it uses less digits than its factorization.

797097439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 3000564, while the sum is 55.

The square root of 797097439 is about 28232.9141074739. The cubic root of 797097439 is about 927.1936982818.

The spelling of 797097439 in words is "seven hundred ninety-seven million, ninety-seven thousand, four hundred thirty-nine".