97609638 has 64 divisors (see below), whose sum is σ = 234270720. Its totient is φ = 26524800.

The previous prime is 97609619. The next prime is 97609649. The reversal of 97609638 is 83690679.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78808 + ... + 80036.

It is an arithmetic number, because the mean of its divisors is an integer number (3660480).

Almost surely, 2^97609638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97609638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117135360).

97609638 is an abundant number, since it is smaller than the sum of its proper divisors (136661082).

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

97609638 is a wasteful number, since it uses less digits than its factorization.

97609638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 97609638 is about 9879.7590051580. The cubic root of 97609638 is about 460.4306584375.

The spelling of 97609638 in words is "ninety-seven million, six hundred nine thousand, six hundred thirty-eight".