918554969 has 2 divisors, whose sum is σ = 918554970. Its totient is φ = 918554968.

The previous prime is 918554929. The next prime is 918554977. The reversal of 918554969 is 969455819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906913225 + 11641744 = 30115^2 + 3412^2 .

It is a cyclic number.

It is not a de Polignac number, because 918554969 - 2¹⁶ = 918489433 is a prime.

It is a super-2 number, since 2×918554969² = 1687486462149181922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (918554929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459277484 + 459277485.

It is an arithmetic number, because the mean of its divisors is an integer number (459277485).

Almost surely, 2^918554969 is an apocalyptic number.

It is an amenable number.

918554969 is a deficient number, since it is larger than the sum of its proper divisors (1).

918554969 is an equidigital number, since it uses as much as digits as its factorization.

918554969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 56.

The square root of 918554969 is about 30307.6717845499. The cubic root of 918554969 is about 972.0793488740.

The spelling of 918554969 in words is "nine hundred eighteen million, five hundred fifty-four thousand, nine hundred sixty-nine".