97911408 has 160 divisors (see below), whose sum is σ = 311488000. Its totient is φ = 26417664.

The previous prime is 97911379. The next prime is 97911413. The reversal of 97911408 is 80411979.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312660 + ... + 312972.

It is an arithmetic number, because the mean of its divisors is an integer number (1946800).

Almost surely, 2^97911408 is an apocalyptic number.

97911408 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97911408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155744000).

97911408 is an abundant number, since it is smaller than the sum of its proper divisors (213576592).

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

97911408 is a wasteful number, since it uses less digits than its factorization.

97911408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 97911408 is about 9895.0193531898. The cubic root of 97911408 is about 460.9046595076.

The spelling of 97911408 in words is "ninety-seven million, nine hundred eleven thousand, four hundred eight".