918140827 has 4 divisors (see below), whose sum is σ = 922754800. Its totient is φ = 913526856.

The previous prime is 918140813. The next prime is 918140849. The reversal of 918140827 is 728041819.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 918140827 - 2²³ = 909752219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 918140827.

It is not an unprimeable number, because it can be changed into a prime (918140807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306688 + ... + 2307085.

It is an arithmetic number, because the mean of its divisors is an integer number (230688700).

Almost surely, 2^918140827 is an apocalyptic number.

918140827 is a deficient number, since it is larger than the sum of its proper divisors (4613973).

918140827 is a wasteful number, since it uses less digits than its factorization.

918140827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613972.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 918140827 is about 30300.8387177649. The cubic root of 918140827 is about 971.9332355340.

The spelling of 918140827 in words is "nine hundred eighteen million, one hundred forty thousand, eight hundred twenty-seven".