71378359 has 16 divisors (see below), whose sum is σ = 82555200. Its totient is φ = 61125120.

The previous prime is 71378353. The next prime is 71378369. The reversal of 71378359 is 95387317.

It is a cyclic number.

It is not a de Polignac number, because 71378359 - 2¹⁵ = 71345591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71378353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13417 + ... + 17965.

It is an arithmetic number, because the mean of its divisors is an integer number (5159700).

Almost surely, 2^71378359 is an apocalyptic number.

71378359 is a deficient number, since it is larger than the sum of its proper divisors (11176841).

71378359 is a wasteful number, since it uses less digits than its factorization.

71378359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650.

The product of its digits is 158760, while the sum is 43.

The square root of 71378359 is about 8448.5714177013. The cubic root of 71378359 is about 414.8160194792.

It can be divided in two parts, 71 and 378359, that multiplied together give a square (26863489 = 5183²).

The spelling of 71378359 in words is "seventy-one million, three hundred seventy-eight thousand, three hundred fifty-nine".