97122420 has 72 divisors (see below), whose sum is σ = 295410024. Its totient is φ = 25828608.

The previous prime is 97122413. The next prime is 97122439. The reversal of 97122420 is 2422179.

It can be written as a sum of positive squares in 4 ways, for example, as 37307664 + 59814756 = 6108^2 + 7734^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121462 + ... + 122258.

It is an arithmetic number, because the mean of its divisors is an integer number (4102917).

Almost surely, 2^97122420 is an apocalyptic number.

97122420 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97122420 is an abundant number, since it is smaller than the sum of its proper divisors (198287604).

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

97122420 is a wasteful number, since it uses less digits than its factorization.

97122420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 97122420 is about 9855.0707760016. The cubic root of 97122420 is about 459.6633011861.

Adding to 97122420 its reverse (2422179), we get a palindrome (99544599).

The spelling of 97122420 in words is "ninety-seven million, one hundred twenty-two thousand, four hundred twenty".