73539645 has 8 divisors (see below), whose sum is σ = 117663456. Its totient is φ = 39221136.

The previous prime is 73539643. The next prime is 73539647. The reversal of 73539645 is 54693537.

It is an interprime number because it is at equal distance from previous prime (73539643) and next prime (73539647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73539645 - 2¹ = 73539643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73539597 and 73539606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73539643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2451307 + ... + 2451336.

It is an arithmetic number, because the mean of its divisors is an integer number (14707932).

Almost surely, 2^73539645 is an apocalyptic number.

It is an amenable number.

73539645 is a deficient number, since it is larger than the sum of its proper divisors (44123811).

73539645 is a wasteful number, since it uses less digits than its factorization.

73539645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902651.

The product of its digits is 340200, while the sum is 42.

The square root of 73539645 is about 8575.5259313934. The cubic root of 73539645 is about 418.9612368565.

The spelling of 73539645 in words is "seventy-three million, five hundred thirty-nine thousand, six hundred forty-five".