920361289 has 4 divisors (see below), whose sum is σ = 925446340. Its totient is φ = 915276240.

The previous prime is 920361287. The next prime is 920361301. The reversal of 920361289 is 982163029.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7112889 + 913248400 = 2667^2 + 30220^2 .

It is a cyclic number.

It is not a de Polignac number, because 920361289 - 2¹ = 920361287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920361287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542254 + ... + 2542615.

It is an arithmetic number, because the mean of its divisors is an integer number (231361585).

Almost surely, 2^920361289 is an apocalyptic number.

It is an amenable number.

920361289 is a deficient number, since it is larger than the sum of its proper divisors (5085051).

920361289 is a wasteful number, since it uses less digits than its factorization.

920361289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085050.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 920361289 is about 30337.4568644110. The cubic root of 920361289 is about 972.7161231962.

The spelling of 920361289 in words is "nine hundred twenty million, three hundred sixty-one thousand, two hundred eighty-nine".