71437814 has 16 divisors (see below), whose sum is σ = 122581248. Its totient is φ = 30587112.

The previous prime is 71437811. The next prime is 71437823. The reversal of 71437814 is 41873417.

It is a super-2 number, since 2×71437814² = 10206722538197192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71437811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19949 + ... + 23255.

It is an arithmetic number, because the mean of its divisors is an integer number (7661328).

Almost surely, 2^71437814 is an apocalyptic number.

71437814 is a deficient number, since it is larger than the sum of its proper divisors (51143434).

71437814 is a wasteful number, since it uses less digits than its factorization.

71437814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4859.

The product of its digits is 18816, while the sum is 35.

The square root of 71437814 is about 8452.0893274977. The cubic root of 71437814 is about 414.9311619503.

The spelling of 71437814 in words is "seventy-one million, four hundred thirty-seven thousand, eight hundred fourteen".