71378799 has 8 divisors (see below), whose sum is σ = 95224752. Its totient is φ = 47559360.

The previous prime is 71378789. The next prime is 71378803. The reversal of 71378799 is 99787317.

It is a happy number.

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

It is not a de Polignac number, because 71378799 - 2¹² = 71374703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71378719) 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 7 ways as a sum of consecutive naturals, for example, 867 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (11903094).

Almost surely, 2^71378799 is an apocalyptic number.

71378799 is a deficient number, since it is larger than the sum of its proper divisors (23845953).

71378799 is a wasteful number, since it uses less digits than its factorization.

71378799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13257.

The product of its digits is 666792, while the sum is 51.

The square root of 71378799 is about 8448.5974575666. The cubic root of 71378799 is about 414.8168718322.

The spelling of 71378799 in words is "seventy-one million, three hundred seventy-eight thousand, seven hundred ninety-nine".