97561798 has 8 divisors (see below), whose sum is σ = 146412000. Its totient is φ = 48757800.

The previous prime is 97561757. The next prime is 97561811. The reversal of 97561798 is 89716579.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5673 + ... + 15076.

It is an arithmetic number, because the mean of its divisors is an integer number (18301500).

Almost surely, 2^97561798 is an apocalyptic number.

97561798 is a deficient number, since it is larger than the sum of its proper divisors (48850202).

97561798 is a wasteful number, since it uses less digits than its factorization.

97561798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23102.

The product of its digits is 952560, while the sum is 52.

The square root of 97561798 is about 9877.3375967413. The cubic root of 97561798 is about 460.3554247388.

The spelling of 97561798 in words is "ninety-seven million, five hundred sixty-one thousand, seven hundred ninety-eight".