97971634 has 8 divisors (see below), whose sum is σ = 150929388. Its totient is φ = 47661840.

The previous prime is 97971631. The next prime is 97971667. The reversal of 97971634 is 43617979.

It can be written as a sum of positive squares in 2 ways, for example, as 97950609 + 21025 = 9897^2 + 145^2 .

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 (97971631) 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, 661897 + ... + 662044.

Almost surely, 2^97971634 is an apocalyptic number.

97971634 is a deficient number, since it is larger than the sum of its proper divisors (52957754).

97971634 is a wasteful number, since it uses less digits than its factorization.

97971634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323980.

The product of its digits is 285768, while the sum is 46.

The square root of 97971634 is about 9898.0621335694. The cubic root of 97971634 is about 460.9991420440. Note that the first 3 decimals are identical.

The spelling of 97971634 in words is "ninety-seven million, nine hundred seventy-one thousand, six hundred thirty-four".