71116437 has 32 divisors (see below), whose sum is σ = 114167808. Its totient is φ = 38497536.

The previous prime is 71116399. The next prime is 71116469. The reversal of 71116437 is 73461117.

It is not a de Polignac number, because 71116437 - 2¹² = 71112341 is a prime.

It is a super-2 number, since 2×71116437² = 10115095223149938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71116477) 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 31 ways as a sum of consecutive naturals, for example, 53928 + ... + 55230.

It is an arithmetic number, because the mean of its divisors is an integer number (3567744).

Almost surely, 2^71116437 is an apocalyptic number.

It is an amenable number.

71116437 is a deficient number, since it is larger than the sum of its proper divisors (43051371).

71116437 is a wasteful number, since it uses less digits than its factorization.

71116437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449.

The product of its digits is 3528, while the sum is 30.

The square root of 71116437 is about 8433.0562075679. The cubic root of 71116437 is about 414.3080101867.

The spelling of 71116437 in words is "seventy-one million, one hundred sixteen thousand, four hundred thirty-seven".