97690000 has 50 divisors (see below), whose sum is σ = 236541470. Its totient is φ = 39072000.

The previous prime is 97689989. The next prime is 97690031. The reversal of 97690000 is 9679.

It can be written as a sum of positive squares in 5 ways, for example, as 46022656 + 51667344 = 6784^2 + 7188^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×97690000² = 19086672200000000, which contains 22 as substring.

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 9 ways as a sum of consecutive naturals, for example, 5116 + ... + 14884.

Almost surely, 2^97690000 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 97690000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118270735).

97690000 is an abundant number, since it is smaller than the sum of its proper divisors (138851470).

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

97690000 is an equidigital number, since it uses as much as digits as its factorization.

97690000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797 (or 9776 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 97690000 is about 9883.8251704489. The cubic root of 97690000 is about 460.5569812734.

Adding to 97690000 its reverse (9679), we get a palindrome (97699679).

The spelling of 97690000 in words is "ninety-seven million, six hundred ninety thousand".