73465709 has 4 divisors (see below), whose sum is σ = 73549980. Its totient is φ = 73381440.

The previous prime is 73465699. The next prime is 73465741. The reversal of 73465709 is 90756437.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24157225 + 49308484 = 4915^2 + 7022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73465709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73465409) 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, 40814 + ... + 42575.

It is an arithmetic number, because the mean of its divisors is an integer number (18387495).

Almost surely, 2^73465709 is an apocalyptic number.

It is an amenable number.

73465709 is a deficient number, since it is larger than the sum of its proper divisors (84271).

73465709 is an equidigital number, since it uses as much as digits as its factorization.

73465709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84270.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 73465709 is about 8571.2139746946. The cubic root of 73465709 is about 418.8207833415.

The spelling of 73465709 in words is "seventy-three million, four hundred sixty-five thousand, seven hundred nine".