97971442 has 8 divisors (see below), whose sum is σ = 155601756. Its totient is φ = 46104192.

The previous prime is 97971407. The next prime is 97971443. The reversal of 97971442 is 24417979.

It can be written as a sum of positive squares in 2 ways, for example, as 91412721 + 6558721 = 9561^2 + 2561^2 .

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

It is not an unprimeable number, because it can be changed into a prime (97971443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440723 + ... + 1440790.

Almost surely, 2^97971442 is an apocalyptic number.

97971442 is a deficient number, since it is larger than the sum of its proper divisors (57630314).

97971442 is a wasteful number, since it uses less digits than its factorization.

97971442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881532.

The product of its digits is 127008, while the sum is 43.

The square root of 97971442 is about 9898.0524346964. The cubic root of 97971442 is about 460.9988408959.

The spelling of 97971442 in words is "ninety-seven million, nine hundred seventy-one thousand, four hundred forty-two".