73704665 has 4 divisors (see below), whose sum is σ = 88445604. Its totient is φ = 58963728.

The previous prime is 73704643. The next prime is 73704671. The reversal of 73704665 is 56640737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56640737 = 1361 ⋅41617.

It can be written as a sum of positive squares in 2 ways, for example, as 45657049 + 28047616 = 6757^2 + 5296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73704665 is a prime.

It is a Duffinian number.

It is a Curzon 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, 7370462 + ... + 7370471.

It is an arithmetic number, because the mean of its divisors is an integer number (22111401).

Almost surely, 2^73704665 is an apocalyptic number.

It is an amenable number.

73704665 is a deficient number, since it is larger than the sum of its proper divisors (14740939).

73704665 is a wasteful number, since it uses less digits than its factorization.

73704665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14740938.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 73704665 is about 8585.1421071523. The cubic root of 73704665 is about 419.2743801239.

The spelling of 73704665 in words is "seventy-three million, seven hundred four thousand, six hundred sixty-five".