797566505 has 8 divisors (see below), whose sum is σ = 968611392. Its totient is φ = 630365488.

The previous prime is 797566493. The next prime is 797566529. The reversal of 797566505 is 505665797.

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 797566505 - 2¹⁶ = 797500969 is a prime.

It is a super-2 number, since 2×797566505² = 1272224659795830050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960509 + ... + 961338.

It is an arithmetic number, because the mean of its divisors is an integer number (121076424).

Almost surely, 2^797566505 is an apocalyptic number.

It is an amenable number.

797566505 is a deficient number, since it is larger than the sum of its proper divisors (171044887).

797566505 is a wasteful number, since it uses less digits than its factorization.

797566505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921935.

The product of its (nonzero) digits is 1984500, while the sum is 50.

The square root of 797566505 is about 28241.2199630257. The cubic root of 797566505 is about 927.3755370946.

The spelling of 797566505 in words is "seven hundred ninety-seven million, five hundred sixty-six thousand, five hundred five".