288977 has 4 divisors (see below), whose sum is σ = 311220. Its totient is φ = 266736.

The previous prime is 288973. The next prime is 288979. The reversal of 288977 is 779882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 779882 = 2 ⋅389941.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 229441 = 244^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 288977 - 2² = 288973 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288977.

It is not an unprimeable number, because it can be changed into a prime (288973) 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, 11102 + ... + 11127.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2²⁸⁸⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

288977 is a deficient number, since it is larger than the sum of its proper divisors (22243).

288977 is a wasteful number, since it uses less digits than its factorization.

288977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22242.

The product of its digits is 56448, while the sum is 41.

The square root of 288977 is about 537.5658099247. The cubic root of 288977 is about 66.1131362252.

The spelling of 288977 in words is "two hundred eighty-eight thousand, nine hundred seventy-seven".