71374769 has 4 divisors (see below), whose sum is σ = 71600244. Its totient is φ = 71149296.

The previous prime is 71374757. The next prime is 71374799. The reversal of 71374769 is 96747317.

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 13432225 + 57942544 = 3665^2 + 7612^2 .

It is a cyclic number.

It is not a de Polignac number, because 71374769 - 2⁴ = 71374753 is a prime.

It is a super-2 number, since 2×71374769² = 10188715299606722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71374799) 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, 112262 + ... + 112895.

It is an arithmetic number, because the mean of its divisors is an integer number (17900061).

Almost surely, 2^71374769 is an apocalyptic number.

It is an amenable number.

71374769 is a deficient number, since it is larger than the sum of its proper divisors (225475).

71374769 is a wasteful number, since it uses less digits than its factorization.

71374769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225474.

The product of its digits is 222264, while the sum is 44.

The square root of 71374769 is about 8448.3589530749. The cubic root of 71374769 is about 414.8090649228.

The spelling of 71374769 in words is "seventy-one million, three hundred seventy-four thousand, seven hundred sixty-nine".