74471069 has 4 divisors (see below), whose sum is σ = 74498460. Its totient is φ = 74443680.

The previous prime is 74471053. The next prime is 74471081. The reversal of 74471069 is 96017447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 8048569 = 8150^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 74471069 - 2⁴ = 74471053 is a prime.

It is a super-2 number, since 2×74471069² = 11091880236005522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74471099) 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 3 ways as a sum of consecutive naturals, for example, 9104 + ... + 15225.

It is an arithmetic number, because the mean of its divisors is an integer number (18624615).

Almost surely, 2^74471069 is an apocalyptic number.

It is an amenable number.

74471069 is a deficient number, since it is larger than the sum of its proper divisors (27391).

74471069 is a wasteful number, since it uses less digits than its factorization.

74471069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27390.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 74471069 is about 8629.6621602471. The cubic root of 74471069 is about 420.7226203244.

The spelling of 74471069 in words is "seventy-four million, four hundred seventy-one thousand, sixty-nine".