918681001 has 8 divisors (see below), whose sum is σ = 1083789824. Its totient is φ = 762039360.

The previous prime is 918680993. The next prime is 918681041. The reversal of 918681001 is 100186819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 918681001 - 2³ = 918680993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918681041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116560 + ... + 2116993.

It is an arithmetic number, because the mean of its divisors is an integer number (135473728).

Almost surely, 2^918681001 is an apocalyptic number.

It is an amenable number.

918681001 is a deficient number, since it is larger than the sum of its proper divisors (165108823).

918681001 is a wasteful number, since it uses less digits than its factorization.

918681001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233591.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 918681001 is about 30309.7509227641. The cubic root of 918681001 is about 972.1238054773.

The spelling of 918681001 in words is "nine hundred eighteen million, six hundred eighty-one thousand, one".