97818460 has 48 divisors (see below), whose sum is σ = 219945600. Its totient is φ = 36431424.

The previous prime is 97818451. The next prime is 97818463. The reversal of 97818460 is 6481879.

It is a super-2 number, since 2×97818460² = 19136902233543200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97818463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20239 + ... + 24601.

It is an arithmetic number, because the mean of its divisors is an integer number (4582200).

Almost surely, 2^97818460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97818460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109972800).

97818460 is an abundant number, since it is smaller than the sum of its proper divisors (122127140).

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

97818460 is a wasteful number, since it uses less digits than its factorization.

97818460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 97818460 is about 9890.3215316793. The cubic root of 97818460 is about 460.7587666354.

The spelling of 97818460 in words is "ninety-seven million, eight hundred eighteen thousand, four hundred sixty".