97800717 has 12 divisors (see below), whose sum is σ = 151691136. Its totient is φ = 55886040.

The previous prime is 97800697. The next prime is 97800721. The reversal of 97800717 is 71700879.

It is a happy number.

It is not a de Polignac number, because 97800717 - 2⁶ = 97800653 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97800727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332509 + ... + 332802.

It is an arithmetic number, because the mean of its divisors is an integer number (12640928).

Almost surely, 2^97800717 is an apocalyptic number.

It is an amenable number.

97800717 is a deficient number, since it is larger than the sum of its proper divisors (53890419).

97800717 is a wasteful number, since it uses less digits than its factorization.

97800717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665328 (or 665321 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 97800717 is about 9889.4245029729. The cubic root of 97800717 is about 460.7309063960.

The spelling of 97800717 in words is "ninety-seven million, eight hundred thousand, seven hundred seventeen".