73097897 has 4 divisors (see below), whose sum is σ = 73117140. Its totient is φ = 73078656.

The previous prime is 73097891. The next prime is 73097917. The reversal of 73097897 is 79879037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79879037 = 7 ⋅11411291.

It can be written as a sum of positive squares in 2 ways, for example, as 44142736 + 28955161 = 6644^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 73097897 - 2⁶ = 73097833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73097891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1808 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (18279285).

Almost surely, 2^73097897 is an apocalyptic number.

It is an amenable number.

73097897 is a deficient number, since it is larger than the sum of its proper divisors (19243).

73097897 is a wasteful number, since it uses less digits than its factorization.

73097897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19242.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 73097897 is about 8549.7308144760. The cubic root of 73097897 is about 418.1206602821.

The spelling of 73097897 in words is "seventy-three million, ninety-seven thousand, eight hundred ninety-seven".