97489420 has 72 divisors (see below), whose sum is σ = 245911680. Its totient is φ = 32336640.

The previous prime is 97489409. The next prime is 97489429. The reversal of 97489420 is 2498479.

It is not an unprimeable number, because it can be changed into a prime (97489429) 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 23 ways as a sum of consecutive naturals, for example, 28776 + ... + 31984.

It is an arithmetic number, because the mean of its divisors is an integer number (3415440).

Almost surely, 2^97489420 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 97489420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122955840).

97489420 is an abundant number, since it is smaller than the sum of its proper divisors (148422260).

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

97489420 is a wasteful number, since it uses less digits than its factorization.

97489420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 97489420 is about 9873.6730754061. The cubic root of 97489420 is about 460.2415555516.

The spelling of 97489420 in words is "ninety-seven million, four hundred eighty-nine thousand, four hundred twenty".