797719009 has 8 divisors (see below), whose sum is σ = 851532480. Its totient is φ = 745088400.

The previous prime is 797719003. The next prime is 797719019. The reversal of 797719009 is 900917797.

It is a happy number.

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 797719009 - 2⁹ = 797718497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797719003) 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, 294322 + ... + 297019.

It is an arithmetic number, because the mean of its divisors is an integer number (106441560).

Almost surely, 2^797719009 is an apocalyptic number.

It is an amenable number.

797719009 is a deficient number, since it is larger than the sum of its proper divisors (53813471).

797719009 is a wasteful number, since it uses less digits than its factorization.

797719009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591431.

The product of its (nonzero) digits is 250047, while the sum is 49.

The square root of 797719009 is about 28243.9198589714. The cubic root of 797719009 is about 927.4346416603.

The spelling of 797719009 in words is "seven hundred ninety-seven million, seven hundred nineteen thousand, nine".