97975442 has 4 divisors (see below), whose sum is σ = 146963166. Its totient is φ = 48987720.

The previous prime is 97975411. The next prime is 97975447. The reversal of 97975442 is 24457979.

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., 59274601 + 38700841 = 7699^2 + 6221^2 .

It is not an unprimeable number, because it can be changed into a prime (97975447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24493859 + ... + 24493862.

Almost surely, 2^97975442 is an apocalyptic number.

97975442 is a deficient number, since it is larger than the sum of its proper divisors (48987724).

97975442 is a wasteful number, since it uses less digits than its factorization.

97975442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48987723.

The product of its digits is 635040, while the sum is 47.

The square root of 97975442 is about 9898.2544925861. The cubic root of 97975442 is about 461.0051147319.

The spelling of 97975442 in words is "ninety-seven million, nine hundred seventy-five thousand, four hundred forty-two".