74717641 has 4 divisors (see below), whose sum is σ = 74884500. Its totient is φ = 74550784.

The previous prime is 74717627. The next prime is 74717653. The reversal of 74717641 is 14671747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14671747 = 3037 ⋅4831.

It can be written as a sum of positive squares in 2 ways, for example, as 21427641 + 53290000 = 4629^2 + 7300^2 .

It is a cyclic number.

It is not a de Polignac number, because 74717641 - 2⁵ = 74717609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74717641.

It is not an unprimeable number, because it can be changed into a prime (74717611) 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, 82756 + ... + 83653.

It is an arithmetic number, because the mean of its divisors is an integer number (18721125).

Almost surely, 2^74717641 is an apocalyptic number.

It is an amenable number.

74717641 is a deficient number, since it is larger than the sum of its proper divisors (166859).

74717641 is a wasteful number, since it uses less digits than its factorization.

74717641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166858.

The product of its digits is 32928, while the sum is 37.

The square root of 74717641 is about 8643.9366610359. The cubic root of 74717641 is about 421.1864431110.

The spelling of 74717641 in words is "seventy-four million, seven hundred seventeen thousand, six hundred forty-one".