918269389 has 2 divisors, whose sum is σ = 918269390. Its totient is φ = 918269388.

The previous prime is 918269357. The next prime is 918269413. The reversal of 918269389 is 983962819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578162025 + 340107364 = 24045^2 + 18442^2 .

It is a cyclic number.

It is not a de Polignac number, because 918269389 - 2⁵ = 918269357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918269329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459134694 + 459134695.

It is an arithmetic number, because the mean of its divisors is an integer number (459134695).

Almost surely, 2^918269389 is an apocalyptic number.

It is an amenable number.

918269389 is a deficient number, since it is larger than the sum of its proper divisors (1).

918269389 is an equidigital number, since it uses as much as digits as its factorization.

918269389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 55.

The square root of 918269389 is about 30302.9600699338. The cubic root of 918269389 is about 971.9785981644.

The spelling of 918269389 in words is "nine hundred eighteen million, two hundred sixty-nine thousand, three hundred eighty-nine".