74887541 has 4 divisors (see below), whose sum is σ = 77469900. Its totient is φ = 72305184.

The previous prime is 74887507. The next prime is 74887559. The reversal of 74887541 is 14578847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14578847 = 3271 ⋅4457.

It can be written as a sum of positive squares in 2 ways, for example, as 26306641 + 48580900 = 5129^2 + 6970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74887541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74887492 and 74887501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74817541) 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, 1291136 + ... + 1291193.

It is an arithmetic number, because the mean of its divisors is an integer number (19367475).

Almost surely, 2^74887541 is an apocalyptic number.

It is an amenable number.

74887541 is a deficient number, since it is larger than the sum of its proper divisors (2582359).

74887541 is a wasteful number, since it uses less digits than its factorization.

74887541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582358.

The product of its digits is 250880, while the sum is 44.

The square root of 74887541 is about 8653.7587787042. The cubic root of 74887541 is about 421.5054458905.

The spelling of 74887541 in words is "seventy-four million, eight hundred eighty-seven thousand, five hundred forty-one".