71225769 has 8 divisors (see below), whose sum is σ = 98242560. Its totient is φ = 45846416.

The previous prime is 71225747. The next prime is 71225783. The reversal of 71225769 is 96752217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71225769 - 2¹³ = 71217577 is a prime.

It is a super-2 number, since 2×71225769² = 10146220339282722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71225729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409257 + ... + 409430.

It is an arithmetic number, because the mean of its divisors is an integer number (12280320).

Almost surely, 2^71225769 is an apocalyptic number.

It is an amenable number.

71225769 is a deficient number, since it is larger than the sum of its proper divisors (27016791).

71225769 is a wasteful number, since it uses less digits than its factorization.

71225769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818719.

The product of its digits is 52920, while the sum is 39.

The square root of 71225769 is about 8439.5360654481. The cubic root of 71225769 is about 414.5202158424.

The spelling of 71225769 in words is "seventy-one million, two hundred twenty-five thousand, seven hundred sixty-nine".