173473397 has 4 divisors (see below), whose sum is σ = 173530476. Its totient is φ = 173416320.

The previous prime is 173473367. The next prime is 173473409. The reversal of 173473397 is 793374371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793374371 = 349 ⋅2273279.

It can be written as a sum of positive squares in 2 ways, for example, as 88943761 + 84529636 = 9431^2 + 9194^2 .

It is a cyclic number.

It is not a de Polignac number, because 173473397 - 2⁸ = 173473141 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 (173473357) 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, 23708 + ... + 30149.

It is an arithmetic number, because the mean of its divisors is an integer number (43382619).

Almost surely, 2^173473397 is an apocalyptic number.

It is an amenable number.

173473397 is a deficient number, since it is larger than the sum of its proper divisors (57079).

173473397 is an equidigital number, since it uses as much as digits as its factorization.

173473397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57078.

The product of its digits is 333396, while the sum is 44.

The square root of 173473397 is about 13170.9299975362. The cubic root of 173473397 is about 557.7132481342.

The spelling of 173473397 in words is "one hundred seventy-three million, four hundred seventy-three thousand, three hundred ninety-seven".