854779 has 4 divisors (see below), whose sum is σ = 857520. Its totient is φ = 852040.

The previous prime is 854771. The next prime is 854801. The reversal of 854779 is 977458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977458 = 2 ⋅488729.

It is a cyclic number.

It is not a de Polignac number, because 854779 - 2³ = 854771 is a prime.

It is a pancake number, because a pancake can be divided into 854779 parts by 1307 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854771) 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, 832 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (214380).

2⁸⁵⁴⁷⁷⁹ is an apocalyptic number.

854779 is a deficient number, since it is larger than the sum of its proper divisors (2741).

854779 is a wasteful number, since it uses less digits than its factorization.

854779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740.

The product of its digits is 70560, while the sum is 40.

The square root of 854779 is about 924.5425896085. The cubic root of 854779 is about 94.9040212553.

The spelling of 854779 in words is "eight hundred fifty-four thousand, seven hundred seventy-nine".