97447442 has 4 divisors (see below), whose sum is σ = 146171166. Its totient is φ = 48723720.

The previous prime is 97447423. The next prime is 97447459. The reversal of 97447442 is 24474479.

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., 77457601 + 19989841 = 8801^2 + 4471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97447442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24361859 + ... + 24361862.

Almost surely, 2^97447442 is an apocalyptic number.

97447442 is a deficient number, since it is larger than the sum of its proper divisors (48723724).

97447442 is a wasteful number, since it uses less digits than its factorization.

97447442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48723723.

The product of its digits is 225792, while the sum is 41.

The square root of 97447442 is about 9871.5470925281. The cubic root of 97447442 is about 460.1754875493.

The spelling of 97447442 in words is "ninety-seven million, four hundred forty-seven thousand, four hundred forty-two".