775248217 has 8 divisors (see below), whose sum is σ = 801466880. Its totient is φ = 749105280.

The previous prime is 775248211. The next prime is 775248233. The reversal of 775248217 is 712842577.

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 775248217 - 2¹¹ = 775246169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (775248211) 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, 2284 + ... + 39442.

It is an arithmetic number, because the mean of its divisors is an integer number (100183360).

Almost surely, 2^775248217 is an apocalyptic number.

It is an amenable number.

775248217 is a deficient number, since it is larger than the sum of its proper divisors (26218663).

775248217 is a wasteful number, since it uses less digits than its factorization.

775248217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37863.

The product of its digits is 219520, while the sum is 43.

The square root of 775248217 is about 27843.2795661718. The cubic root of 775248217 is about 918.6433284332.

The spelling of 775248217 in words is "seven hundred seventy-five million, two hundred forty-eight thousand, two hundred seventeen".