73116577 has 4 divisors (see below), whose sum is σ = 73137456. Its totient is φ = 73095700.

The previous prime is 73116557. The next prime is 73116587. The reversal of 73116577 is 77561137.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77561137 = 1237 ⋅62701.

It is a cyclic number.

It is not a de Polignac number, because 73116577 - 2¹⁵ = 73083809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73116557) 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, 3763 + ... + 12664.

It is an arithmetic number, because the mean of its divisors is an integer number (18284364).

Almost surely, 2^73116577 is an apocalyptic number.

It is an amenable number.

73116577 is a deficient number, since it is larger than the sum of its proper divisors (20879).

73116577 is a wasteful number, since it uses less digits than its factorization.

73116577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20878.

The product of its digits is 30870, while the sum is 37.

The square root of 73116577 is about 8550.8231767474. The cubic root of 73116577 is about 418.1562738407.

The spelling of 73116577 in words is "seventy-three million, one hundred sixteen thousand, five hundred seventy-seven".