73865315 has 4 divisors (see below), whose sum is σ = 88638384. Its totient is φ = 59092248.

The previous prime is 73865303. The next prime is 73865321. The reversal of 73865315 is 51356837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51356837 = 7 ⋅7336691.

It is a cyclic number.

It is not a de Polignac number, because 73865315 - 2⁶ = 73865251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7386527 + ... + 7386536.

It is an arithmetic number, because the mean of its divisors is an integer number (22159596).

Almost surely, 2^73865315 is an apocalyptic number.

73865315 is a deficient number, since it is larger than the sum of its proper divisors (14773069).

73865315 is a wasteful number, since it uses less digits than its factorization.

73865315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773068.

The product of its digits is 75600, while the sum is 38.

The square root of 73865315 is about 8594.4932951280. The cubic root of 73865315 is about 419.5787821616.

The spelling of 73865315 in words is "seventy-three million, eight hundred sixty-five thousand, three hundred fifteen".