73615 has 4 divisors (see below), whose sum is σ = 88344. Its totient is φ = 58888.

The previous prime is 73613. The next prime is 73637. The reversal of 73615 is 51637.

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

It is a cyclic number.

It is not a de Polignac number, because 73615 - 2¹ = 73613 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7357 + ... + 7366.

It is an arithmetic number, because the mean of its divisors is an integer number (22086).

2⁷³⁶¹⁵ is an apocalyptic number.

73615 is a deficient number, since it is larger than the sum of its proper divisors (14729).

73615 is a wasteful number, since it uses less digits than its factorization.

73615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14728.

The product of its digits is 630, while the sum is 22.

The square root of 73615 is about 271.3208432834. The cubic root of 73615 is about 41.9104289160.

Adding to 73615 its sum of digits (22), we get a palindrome (73637).

The spelling of 73615 in words is "seventy-three thousand, six hundred fifteen".