97209941400 has 384 divisors, whose sum is σ = 393374822400. Its totient is φ = 21753100800.

The previous prime is 97209941383. The next prime is 97209941401. The reversal of 97209941400 is 414990279.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97209941401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 709257 + ... + 835143.

It is an arithmetic number, because the mean of its divisors is an integer number (1024413600).

Almost surely, 2^97209941400 is an apocalyptic number.

97209941400 is a gapful number since it is divisible by the number (90) 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 97209941400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196687411200).

97209941400 is an abundant number, since it is smaller than the sum of its proper divisors (296164881000).

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

97209941400 is a wasteful number, since it uses less digits than its factorization.

97209941400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125936 (or 125921 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 97209941400 in words is "ninety-seven billion, two hundred nine million, nine hundred forty-one thousand, four hundred".