71267797 has 8 divisors (see below), whose sum is σ = 72246680. Its totient is φ = 70295040.

The previous prime is 71267771. The next prime is 71267821. The reversal of 71267797 is 79776217.

It can be written as a sum of positive squares in 4 ways, for example, as 47900241 + 23367556 = 6921^2 + 4834^2 .

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 71267797 - 2¹⁵ = 71235029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71267737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24913 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (9030835).

Almost surely, 2^71267797 is an apocalyptic number.

It is an amenable number.

71267797 is a deficient number, since it is larger than the sum of its proper divisors (978883).

71267797 is a wasteful number, since it uses less digits than its factorization.

71267797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063.

The product of its digits is 259308, while the sum is 46.

The square root of 71267797 is about 8442.0256455427. The cubic root of 71267797 is about 414.6017314249.

The spelling of 71267797 in words is "seventy-one million, two hundred sixty-seven thousand, seven hundred ninety-seven".