97189632 has 180 divisors, whose sum is σ = 299262040. Its totient is φ = 31352832.

The previous prime is 97189607. The next prime is 97189633. The reversal of 97189632 is 23698179.

97189632 is a `hidden beast` number, since 9 + 7 + 1 + 8 + 9 + 632 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97189633) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 891594 + ... + 891702.

Almost surely, 2^97189632 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 97189632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149631020).

97189632 is an abundant number, since it is smaller than the sum of its proper divisors (202072408).

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

97189632 is a wasteful number, since it uses less digits than its factorization.

97189632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 157 counting only the distinct ones).

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

The square root of 97189632 is about 9858.4802074153. The cubic root of 97189632 is about 459.7693109203.

The spelling of 97189632 in words is "ninety-seven million, one hundred eighty-nine thousand, six hundred thirty-two".