97440918 has 8 divisors (see below), whose sum is σ = 194881848. Its totient is φ = 32480304.

The previous prime is 97440901. The next prime is 97440929. The reversal of 97440918 is 81904479.

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

97440918 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97440918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8120071 + ... + 8120082.

It is an arithmetic number, because the mean of its divisors is an integer number (24360231).

Almost surely, 2^97440918 is an apocalyptic number.

97440918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97440918 is a wasteful number, since it uses less digits than its factorization.

97440918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16240158.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 97440918 is about 9871.2166423395. The cubic root of 97440918 is about 460.1652179044.

The spelling of 97440918 in words is "ninety-seven million, four hundred forty thousand, nine hundred eighteen".