97561442 has 16 divisors (see below), whose sum is σ = 159797664. Its totient is φ = 44304000.

The previous prime is 97561439. The next prime is 97561493. The reversal of 97561442 is 24416579.

It is a junction number, because it is equal to n+sod(n) for n = 97561396 and 97561405.

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 7 ways as a sum of consecutive naturals, for example, 44717 + ... + 46847.

It is an arithmetic number, because the mean of its divisors is an integer number (9987354).

Almost surely, 2^97561442 is an apocalyptic number.

97561442 is a deficient number, since it is larger than the sum of its proper divisors (62236222).

97561442 is a wasteful number, since it uses less digits than its factorization.

97561442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its digits is 60480, while the sum is 38.

The square root of 97561442 is about 9877.3195756744. The cubic root of 97561442 is about 460.3548647972.

The spelling of 97561442 in words is "ninety-seven million, five hundred sixty-one thousand, four hundred forty-two".