97356383491 has 4 divisors (see below), whose sum is σ = 97387580584. Its totient is φ = 97325186400.

The previous prime is 97356383473. The next prime is 97356383563. The reversal of 97356383491 is 19438365379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19438365379 = 947 ⋅20526257.

It is a cyclic number.

It is not a de Polignac number, because 97356383491 - 2¹¹ = 97356381443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97356383431) 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, 15593865 + ... + 15600106.

It is an arithmetic number, because the mean of its divisors is an integer number (24346895146).

Almost surely, 2^97356383491 is an apocalyptic number.

97356383491 is a deficient number, since it is larger than the sum of its proper divisors (31197093).

97356383491 is a wasteful number, since it uses less digits than its factorization.

97356383491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31197092.

The product of its digits is 14696640, while the sum is 58.

The spelling of 97356383491 in words is "ninety-seven billion, three hundred fifty-six million, three hundred eighty-three thousand, four hundred ninety-one".