775089 has 20 divisors (see below), whose sum is σ = 1324224. Its totient is φ = 442584.

The previous prime is 775087. The next prime is 775091. The reversal of 775089 is 980577.

It is an interprime number because it is at equal distance from previous prime (775087) and next prime (775091).

It is not a de Polignac number, because 775089 - 2¹ = 775087 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (775087) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117 + ... + 1250.

2⁷⁷⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

775089 is a deficient number, since it is larger than the sum of its proper divisors (549135).

775089 is a wasteful number, since it uses less digits than its factorization.

775089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 775089 is about 880.3913902350. The cubic root of 775089 is about 91.8580435179.

The spelling of 775089 in words is "seven hundred seventy-five thousand, eighty-nine".