74285641 has 4 divisors (see below), whose sum is σ = 76681984. Its totient is φ = 71889300.

The previous prime is 74285633. The next prime is 74285657. The reversal of 74285641 is 14658247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14658247 = 113 ⋅129719.

It is a cyclic number.

It is not a de Polignac number, because 74285641 - 2³ = 74285633 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 74285641.

It is not an unprimeable number, because it can be changed into a prime (74285621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198125 + ... + 1198186.

It is an arithmetic number, because the mean of its divisors is an integer number (19170496).

Almost surely, 2^74285641 is an apocalyptic number.

It is an amenable number.

74285641 is a deficient number, since it is larger than the sum of its proper divisors (2396343).

74285641 is a wasteful number, since it uses less digits than its factorization.

74285641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396342.

The product of its digits is 53760, while the sum is 37.

The square root of 74285641 is about 8618.9118222662. The cubic root of 74285641 is about 420.3731396716.

The spelling of 74285641 in words is "seventy-four million, two hundred eighty-five thousand, six hundred forty-one".