97544920 has 64 divisors (see below), whose sum is σ = 242403840. Its totient is φ = 35030400.

The previous prime is 97544911. The next prime is 97544927. The reversal of 97544920 is 2944579.

It is a super-2 number, since 2×97544920² = 19030022835612800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97544927) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35185 + ... + 37855.

It is an arithmetic number, because the mean of its divisors is an integer number (3787560).

Almost surely, 2^97544920 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 97544920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121201920).

97544920 is an abundant number, since it is smaller than the sum of its proper divisors (144858920).

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

97544920 is a wasteful number, since it uses less digits than its factorization.

97544920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 97544920 is about 9876.4831797558. The cubic root of 97544920 is about 460.3288763455.

The spelling of 97544920 in words is "ninety-seven million, five hundred forty-four thousand, nine hundred twenty".