97209100 has 18 divisors (see below), whose sum is σ = 210943964. Its totient is φ = 38883600.

The previous prime is 97209097. The next prime is 97209121. The reversal of 97209100 is 190279.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 485946 + ... + 486145.

Almost surely, 2^97209100 is an apocalyptic number.

It is an amenable number.

97209100 is an abundant number, since it is smaller than the sum of its proper divisors (113734864).

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

97209100 is a wasteful number, since it uses less digits than its factorization.

97209100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972105 (or 972098 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 97209100 is about 9859.4675312615. The cubic root of 97209100 is about 459.8000075806.

Adding to 97209100 its reverse (190279), we get a palindrome (97399379).

The spelling of 97209100 in words is "ninety-seven million, two hundred nine thousand, one hundred".