775487 has 4 divisors (see below), whose sum is σ = 783120. Its totient is φ = 767856.

The previous prime is 775477. The next prime is 775507. The reversal of 775487 is 784577.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 775487 - 2¹⁰ = 774463 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 775487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3662 + ... + 3867.

It is an arithmetic number, because the mean of its divisors is an integer number (195780).

2⁷⁷⁵⁴⁸⁷ is an apocalyptic number.

775487 is a deficient number, since it is larger than the sum of its proper divisors (7633).

775487 is a wasteful number, since it uses less digits than its factorization.

775487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632.

The product of its digits is 54880, while the sum is 38.

The square root of 775487 is about 880.6173970573. The cubic root of 775487 is about 91.8737635387.

The spelling of 775487 in words is "seven hundred seventy-five thousand, four hundred eighty-seven".