97943242 has 4 divisors (see below), whose sum is σ = 146914866. Its totient is φ = 48971620.

The previous prime is 97943227. The next prime is 97943249. The reversal of 97943242 is 24234979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97239321 + 703921 = 9861^2 + 839^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 97943195 and 97943204.

It is not an unprimeable number, because it can be changed into a prime (97943249) 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 as a sum of consecutive naturals, namely, 24485809 + ... + 24485812.

Almost surely, 2^97943242 is an apocalyptic number.

97943242 is a deficient number, since it is larger than the sum of its proper divisors (48971624).

97943242 is a wasteful number, since it uses less digits than its factorization.

97943242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48971623.

The product of its digits is 108864, while the sum is 40.

The square root of 97943242 is about 9896.6278095117. The cubic root of 97943242 is about 460.9546055060.

The spelling of 97943242 in words is "ninety-seven million, nine hundred forty-three thousand, two hundred forty-two".