97149888 has 224 divisors, whose sum is σ = 329184000. Its totient is φ = 27786240.

The previous prime is 97149887. The next prime is 97149911. The reversal of 97149888 is 88894179.

97149888 is a `hidden beast` number, since 9 + 71 + 498 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97149887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361018 + ... + 361286.

Almost surely, 2^97149888 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 97149888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164592000).

97149888 is an abundant number, since it is smaller than the sum of its proper divisors (232034112).

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

97149888 is a wasteful number, since it uses less digits than its factorization.

97149888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 304 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 97149888 is about 9856.4642747793. The cubic root of 97149888 is about 459.7066308363.

The spelling of 97149888 in words is "ninety-seven million, one hundred forty-nine thousand, eight hundred eighty-eight".