97889956 has 12 divisors (see below), whose sum is σ = 171611440. Its totient is φ = 48858120.

The previous prime is 97889947. The next prime is 97889959. The reversal of 97889956 is 65998879.

It is a junction number, because it is equal to n+sod(n) for n = 97889894 and 97889903.

It is not an unprimeable number, because it can be changed into a prime (97889959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19146 + ... + 23713.

Almost surely, 2^97889956 is an apocalyptic number.

It is an amenable number.

97889956 is a deficient number, since it is larger than the sum of its proper divisors (73721484).

97889956 is a wasteful number, since it uses less digits than its factorization.

97889956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43434 (or 43432 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 61.

The square root of 97889956 is about 9893.9353141205. The cubic root of 97889956 is about 460.8709962565.

The spelling of 97889956 in words is "ninety-seven million, eight hundred eighty-nine thousand, nine hundred fifty-six".