97573405 has 4 divisors (see below), whose sum is σ = 117088092. Its totient is φ = 78058720.

The previous prime is 97573397. The next prime is 97573409. The reversal of 97573405 is 50437579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50437579 = 163 ⋅309433.

It can be written as a sum of positive squares in 2 ways, for example, as 40691641 + 56881764 = 6379^2 + 7542^2 .

It is not a de Polignac number, because 97573405 - 2³ = 97573397 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97573409) 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, 9757336 + ... + 9757345.

It is an arithmetic number, because the mean of its divisors is an integer number (29272023).

Almost surely, 2^97573405 is an apocalyptic number.

It is an amenable number.

97573405 is a deficient number, since it is larger than the sum of its proper divisors (19514687).

97573405 is a wasteful number, since it uses less digits than its factorization.

97573405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19514686.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 97573405 is about 9877.9251363837. The cubic root of 97573405 is about 460.3736802911.

The spelling of 97573405 in words is "ninety-seven million, five hundred seventy-three thousand, four hundred five".