97315311 has 4 divisors (see below), whose sum is σ = 129753752. Its totient is φ = 64876872.

The previous prime is 97315307. The next prime is 97315343. The reversal of 97315311 is 11351379.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97315311 - 2² = 97315307 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 (97315301) 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, 16219216 + ... + 16219221.

It is an arithmetic number, because the mean of its divisors is an integer number (32438438).

Almost surely, 2^97315311 is an apocalyptic number.

97315311 is a deficient number, since it is larger than the sum of its proper divisors (32438441).

97315311 is a wasteful number, since it uses less digits than its factorization.

97315311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32438440.

The product of its digits is 2835, while the sum is 30.

The square root of 97315311 is about 9864.8523050272. The cubic root of 97315311 is about 459.9674063232.

The spelling of 97315311 in words is "ninety-seven million, three hundred fifteen thousand, three hundred eleven".