97944173 has 4 divisors (see below), whose sum is σ = 99285948. Its totient is φ = 96602400.

The previous prime is 97944169. The next prime is 97944181. The reversal of 97944173 is 37144979.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77757124 + 20187049 = 8818^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 97944173 - 2² = 97944169 is a prime.

It is a super-2 number, since 2×97944173² = 19186122049307858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97944073) 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, 670778 + ... + 670923.

It is an arithmetic number, because the mean of its divisors is an integer number (24821487).

Almost surely, 2^97944173 is an apocalyptic number.

It is an amenable number.

97944173 is a deficient number, since it is larger than the sum of its proper divisors (1341775).

97944173 is a wasteful number, since it uses less digits than its factorization.

97944173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341774.

The product of its digits is 190512, while the sum is 44.

The square root of 97944173 is about 9896.6748456237. The cubic root of 97944173 is about 460.9560660368.

The spelling of 97944173 in words is "ninety-seven million, nine hundred forty-four thousand, one hundred seventy-three".