814974289 has 4 divisors (see below), whose sum is σ = 815065524. Its totient is φ = 814883056.

The previous prime is 814974241. The next prime is 814974299. The reversal of 814974289 is 982479418.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 982479418 = 2 ⋅491239709.

It can be written as a sum of positive squares in 2 ways, for example, as 384826689 + 430147600 = 19617^2 + 20740^2 .

It is a cyclic number.

It is not a de Polignac number, because 814974289 - 2⁷ = 814974161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814974299) 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, 30562 + ... + 50635.

It is an arithmetic number, because the mean of its divisors is an integer number (203766381).

Almost surely, 2^814974289 is an apocalyptic number.

It is an amenable number.

814974289 is a deficient number, since it is larger than the sum of its proper divisors (91235).

814974289 is a wasteful number, since it uses less digits than its factorization.

814974289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91234.

The product of its digits is 1161216, while the sum is 52.

The square root of 814974289 is about 28547.7545351644. The cubic root of 814974289 is about 934.0740407353.

The spelling of 814974289 in words is "eight hundred fourteen million, nine hundred seventy-four thousand, two hundred eighty-nine".