775379 has 4 divisors (see below), whose sum is σ = 845880. Its totient is φ = 704880.

The previous prime is 775367. The next prime is 775393. The reversal of 775379 is 973577.

It is a happy number.

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

It is not a de Polignac number, because 775379 - 2⁴ = 775363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775309) 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, 35234 + ... + 35255.

It is an arithmetic number, because the mean of its divisors is an integer number (211470).

2⁷⁷⁵³⁷⁹ is an apocalyptic number.

775379 is a deficient number, since it is larger than the sum of its proper divisors (70501).

775379 is a wasteful number, since it uses less digits than its factorization.

775379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70500.

The product of its digits is 46305, while the sum is 38.

The square root of 775379 is about 880.5560743076. The cubic root of 775379 is about 91.8694983362.

The spelling of 775379 in words is "seven hundred seventy-five thousand, three hundred seventy-nine".