71326387 has 16 divisors (see below), whose sum is σ = 79432704. Its totient is φ = 63504000.

The previous prime is 71326369. The next prime is 71326397. The reversal of 71326387 is 78362317.

It is a cyclic number.

It is not a de Polignac number, because 71326387 - 2¹¹ = 71324339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71326337) 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 15 ways as a sum of consecutive naturals, for example, 211483 + ... + 211819.

It is an arithmetic number, because the mean of its divisors is an integer number (4964544).

Almost surely, 2^71326387 is an apocalyptic number.

71326387 is a deficient number, since it is larger than the sum of its proper divisors (8106317).

71326387 is a wasteful number, since it uses less digits than its factorization.

71326387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its digits is 42336, while the sum is 37.

The square root of 71326387 is about 8445.4950713383. The cubic root of 71326387 is about 414.7153164414.

The spelling of 71326387 in words is "seventy-one million, three hundred twenty-six thousand, three hundred eighty-seven".