97797317 has 4 divisors (see below), whose sum is σ = 99174816. Its totient is φ = 96419820.

The previous prime is 97797299. The next prime is 97797361. The reversal of 97797317 is 71379779.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71379779 = 71 ⋅1005349.

It is a cyclic number.

It is not a de Polignac number, because 97797317 - 2⁸ = 97797061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97797517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688643 + ... + 688784.

It is an arithmetic number, because the mean of its divisors is an integer number (24793704).

Almost surely, 2^97797317 is an apocalyptic number.

It is an amenable number.

97797317 is a deficient number, since it is larger than the sum of its proper divisors (1377499).

97797317 is a wasteful number, since it uses less digits than its factorization.

97797317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377498.

The product of its digits is 583443, while the sum is 50.

The square root of 97797317 is about 9889.2526006772. The cubic root of 97797317 is about 460.7255672967.

The spelling of 97797317 in words is "ninety-seven million, seven hundred ninety-seven thousand, three hundred seventeen".