71612434 has 16 divisors (see below), whose sum is σ = 110545560. Its totient is φ = 34777600.

The previous prime is 71612419. The next prime is 71612447. The reversal of 71612434 is 43421617.

It can be written as a sum of positive squares in 4 ways, for example, as 68840209 + 2772225 = 8297^2 + 1665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7362 + ... + 14050.

Almost surely, 2^71612434 is an apocalyptic number.

71612434 is a deficient number, since it is larger than the sum of its proper divisors (38933126).

71612434 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (71612433) it forms an eRAP, since the sums of their prime factors are consecutive (6844 and 6845).

71612434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845.

The product of its digits is 4032, while the sum is 28.

The square root of 71612434 is about 8462.4130128469. The cubic root of 71612434 is about 415.2689677509.

The spelling of 71612434 in words is "seventy-one million, six hundred twelve thousand, four hundred thirty-four".