97137818 has 8 divisors (see below), whose sum is σ = 150407040. Its totient is φ = 47002140.

The previous prime is 97137811. The next prime is 97137829. The reversal of 97137818 is 81873179.

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

It is a super-2 number, since 2×97137818² = 18871511371602248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97137811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783308 + ... + 783431.

It is an arithmetic number, because the mean of its divisors is an integer number (18800880).

Almost surely, 2^97137818 is an apocalyptic number.

97137818 is a deficient number, since it is larger than the sum of its proper divisors (53269222).

97137818 is a wasteful number, since it uses less digits than its factorization.

97137818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566772.

The product of its digits is 84672, while the sum is 44.

The square root of 97137818 is about 9855.8519672325. The cubic root of 97137818 is about 459.6875919095.

The spelling of 97137818 in words is "ninety-seven million, one hundred thirty-seven thousand, eight hundred eighteen".