73097071 has 4 divisors (see below), whose sum is σ = 73114200. Its totient is φ = 73079944.

The previous prime is 73097053. The next prime is 73097077. The reversal of 73097071 is 17079037.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17079037 = 67 ⋅254911.

It is a cyclic number.

It is not a de Polignac number, because 73097071 - 2¹⁷ = 72965999 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 (73097077) 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, 3540 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (18278550).

Almost surely, 2^73097071 is an apocalyptic number.

73097071 is a deficient number, since it is larger than the sum of its proper divisors (17129).

73097071 is an equidigital number, since it uses as much as digits as its factorization.

73097071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 73097071 is about 8549.6825087251. The cubic root of 73097071 is about 418.1190853669.

The spelling of 73097071 in words is "seventy-three million, ninety-seven thousand, seventy-one".