74048561 has 8 divisors (see below), whose sum is σ = 74895720. Its totient is φ = 73204992.

The previous prime is 74048543. The next prime is 74048573. The reversal of 74048561 is 16584047.

It can be written as a sum of positive squares in 4 ways, for example, as 7054336 + 66994225 = 2656^2 + 8185^2 .

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 74048561 - 2²⁶ = 6939697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74048521) 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, 68735 + ... + 69803.

It is an arithmetic number, because the mean of its divisors is an integer number (9361965).

Almost surely, 2^74048561 is an apocalyptic number.

It is an amenable number.

74048561 is a deficient number, since it is larger than the sum of its proper divisors (847159).

74048561 is a wasteful number, since it uses less digits than its factorization.

74048561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 74048561 is about 8605.1473549266. The cubic root of 74048561 is about 419.9254610729.

The spelling of 74048561 in words is "seventy-four million, forty-eight thousand, five hundred sixty-one".