97129844 has 24 divisors (see below), whose sum is σ = 195554688. Its totient is φ = 41349600.

The previous prime is 97129829. The next prime is 97129889. The reversal of 97129844 is 44892179.

It is a junction number, because it is equal to n+sod(n) for n = 97129795 and 97129804.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7259 + ... + 15714.

It is an arithmetic number, because the mean of its divisors is an integer number (8148112).

Almost surely, 2^97129844 is an apocalyptic number.

It is an amenable number.

97129844 is an abundant number, since it is smaller than the sum of its proper divisors (98424844).

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

97129844 is a wasteful number, since it uses less digits than its factorization.

97129844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23135 (or 23133 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 97129844 is about 9855.4474276920. The cubic root of 97129844 is about 459.6750130490.

The spelling of 97129844 in words is "ninety-seven million, one hundred twenty-nine thousand, eight hundred forty-four".