97961225 has 24 divisors (see below), whose sum is σ = 131074200. Its totient is φ = 72350720.

The previous prime is 97961221. The next prime is 97961231. The reversal of 97961225 is 52216979.

It can be written as a sum of positive squares in 12 ways, for example, as 30327049 + 67634176 = 5507^2 + 8224^2 .

It is not a de Polignac number, because 97961225 - 2² = 97961221 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (97961221) 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, 20351 + ... + 24699.

It is an arithmetic number, because the mean of its divisors is an integer number (5461425).

Almost surely, 2^97961225 is an apocalyptic number.

It is an amenable number.

97961225 is a deficient number, since it is larger than the sum of its proper divisors (33112975).

97961225 is a wasteful number, since it uses less digits than its factorization.

97961225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4424 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 97961225 is about 9897.5363096076. The cubic root of 97961225 is about 460.9828151753.

The spelling of 97961225 in words is "ninety-seven million, nine hundred sixty-one thousand, two hundred twenty-five".