97911357 has 4 divisors (see below), whose sum is σ = 130548480. Its totient is φ = 65274236.

The previous prime is 97911251. The next prime is 97911367. The reversal of 97911357 is 75311979.

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: 75311979 = 3 ⋅25103993.

It is a cyclic number.

It is not a de Polignac number, because 97911357 - 2¹⁶ = 97845821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97911367) 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 3 ways as a sum of consecutive naturals, for example, 16318557 + ... + 16318562.

It is an arithmetic number, because the mean of its divisors is an integer number (32637120).

Almost surely, 2^97911357 is an apocalyptic number.

It is an amenable number.

97911357 is a deficient number, since it is larger than the sum of its proper divisors (32637123).

97911357 is a wasteful number, since it uses less digits than its factorization.

97911357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32637122.

The product of its digits is 59535, while the sum is 42.

The square root of 97911357 is about 9895.0167761353. The cubic root of 97911357 is about 460.9045794824.

The spelling of 97911357 in words is "ninety-seven million, nine hundred eleven thousand, three hundred fifty-seven".