97540647 has 8 divisors (see below), whose sum is σ = 132186480. Its totient is φ = 63960960.

The previous prime is 97540643. The next prime is 97540657. The reversal of 97540647 is 74604579.

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

It is not a de Polignac number, because 97540647 - 2² = 97540643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97540599 and 97540608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97540643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266322 + ... + 266687.

It is an arithmetic number, because the mean of its divisors is an integer number (16523310).

Almost surely, 2^97540647 is an apocalyptic number.

97540647 is a deficient number, since it is larger than the sum of its proper divisors (34645833).

97540647 is a wasteful number, since it uses less digits than its factorization.

97540647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533073.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 97540647 is about 9876.2668554470. The cubic root of 97540647 is about 460.3221546081.

The spelling of 97540647 in words is "ninety-seven million, five hundred forty thousand, six hundred forty-seven".