71116438 has 4 divisors (see below), whose sum is σ = 106674660. Its totient is φ = 35558218.

The previous prime is 71116399. The next prime is 71116469. The reversal of 71116438 is 83461117.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17779108 + ... + 17779111.

It is an arithmetic number, because the mean of its divisors is an integer number (26668665).

Almost surely, 2^71116438 is an apocalyptic number.

71116438 is a deficient number, since it is larger than the sum of its proper divisors (35558222).

71116438 is a wasteful number, since it uses less digits than its factorization.

71116438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35558221.

The product of its digits is 4032, while the sum is 31.

The square root of 71116438 is about 8433.0562668584. The cubic root of 71116438 is about 414.3080121287.

The spelling of 71116438 in words is "seventy-one million, one hundred sixteen thousand, four hundred thirty-eight".