75724613 has 8 divisors (see below), whose sum is σ = 80377920. Its totient is φ = 71093440.

The previous prime is 75724609. The next prime is 75724619. The reversal of 75724613 is 31642757.

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

It is a cyclic number.

It is not a de Polignac number, because 75724613 - 2² = 75724609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75724619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808 + ... + 12438.

It is an arithmetic number, because the mean of its divisors is an integer number (10047240).

Almost surely, 2^75724613 is an apocalyptic number.

It is an amenable number.

75724613 is a deficient number, since it is larger than the sum of its proper divisors (4653307).

75724613 is a wasteful number, since it uses less digits than its factorization.

75724613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11067.

The product of its digits is 35280, while the sum is 35.

The square root of 75724613 is about 8701.9890255045. The cubic root of 75724613 is about 423.0701204763.

The spelling of 75724613 in words is "seventy-five million, seven hundred twenty-four thousand, six hundred thirteen".