918464893 has 2 divisors, whose sum is σ = 918464894. Its totient is φ = 918464892.

The previous prime is 918464891. The next prime is 918464917. The reversal of 918464893 is 398464819.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548402724 + 370062169 = 23418^2 + 19237^2 .

It is a cyclic number.

It is not a de Polignac number, because 918464893 - 2¹ = 918464891 is a prime.

Together with 918464891, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 918464893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918464891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459232446 + 459232447.

It is an arithmetic number, because the mean of its divisors is an integer number (459232447).

Almost surely, 2^918464893 is an apocalyptic number.

It is an amenable number.

918464893 is a deficient number, since it is larger than the sum of its proper divisors (1).

918464893 is an equidigital number, since it uses as much as digits as its factorization.

918464893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 918464893 is about 30306.1857217301. The cubic root of 918464893 is about 972.0475729198.

The spelling of 918464893 in words is "nine hundred eighteen million, four hundred sixty-four thousand, eight hundred ninety-three".