73639241 has 8 divisors (see below), whose sum is σ = 79411080. Its totient is φ = 67882752.

The previous prime is 73639187. The next prime is 73639243. The reversal of 73639241 is 14293637.

It can be written as a sum of positive squares in 4 ways, for example, as 40000 + 73599241 = 200^2 + 8579^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73639241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73639243) 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, 7361 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (9926385).

Almost surely, 2^73639241 is an apocalyptic number.

It is an amenable number.

73639241 is a deficient number, since it is larger than the sum of its proper divisors (5771839).

73639241 is a wasteful number, since it uses less digits than its factorization.

73639241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

The product of its digits is 27216, while the sum is 35.

The square root of 73639241 is about 8581.3309573749. The cubic root of 73639241 is about 419.1502869957.

The spelling of 73639241 in words is "seventy-three million, six hundred thirty-nine thousand, two hundred forty-one".