97986642 has 32 divisors (see below), whose sum is σ = 211444800. Its totient is φ = 30093120.

The previous prime is 97986631. The next prime is 97986643. The reversal of 97986642 is 24668979.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (97986643) 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 15 ways as a sum of consecutive naturals, for example, 62484 + ... + 64032.

It is an arithmetic number, because the mean of its divisors is an integer number (6607650).

Almost surely, 2^97986642 is an apocalyptic number.

97986642 is an abundant number, since it is smaller than the sum of its proper divisors (113458158).

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

97986642 is a wasteful number, since it uses less digits than its factorization.

97986642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378.

The product of its digits is 1306368, while the sum is 51.

The square root of 97986642 is about 9898.8202327348. The cubic root of 97986642 is about 461.0226805642.

The spelling of 97986642 in words is "ninety-seven million, nine hundred eighty-six thousand, six hundred forty-two".