918851093 has 2 divisors, whose sum is σ = 918851094. Its totient is φ = 918851092.

The previous prime is 918851069. The next prime is 918851107. The reversal of 918851093 is 390158819.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916757284 + 2093809 = 30278^2 + 1447^2 .

It is a cyclic number.

It is not a de Polignac number, because 918851093 - 2²⁰ = 917802517 is a prime.

It is a super-2 number, since 2×918851093² = 1688574662214589298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918851023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459425546 + 459425547.

It is an arithmetic number, because the mean of its divisors is an integer number (459425547).

Almost surely, 2^918851093 is an apocalyptic number.

It is an amenable number.

918851093 is a deficient number, since it is larger than the sum of its proper divisors (1).

918851093 is an equidigital number, since it uses as much as digits as its factorization.

918851093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 918851093 is about 30312.5566886068. The cubic root of 918851093 is about 972.1837973854.

The spelling of 918851093 in words is "nine hundred eighteen million, eight hundred fifty-one thousand, ninety-three".