775632489 has 8 divisors (see below), whose sum is σ = 1041026112. Its totient is φ = 513663600.

The previous prime is 775632461. The next prime is 775632509. The reversal of 775632489 is 984236577.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 775632489 - 2⁵ = 775632457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (775632439) 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, 855654 + ... + 856559.

It is an arithmetic number, because the mean of its divisors is an integer number (130128264).

Almost surely, 2^775632489 is an apocalyptic number.

It is an amenable number.

775632489 is a deficient number, since it is larger than the sum of its proper divisors (265393623).

775632489 is a wasteful number, since it uses less digits than its factorization.

775632489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712367.

The product of its digits is 2540160, while the sum is 51.

The square root of 775632489 is about 27850.1793351497. The cubic root of 775632489 is about 918.7950865375.

The spelling of 775632489 in words is "seven hundred seventy-five million, six hundred thirty-two thousand, four hundred eighty-nine".