71433416 has 8 divisors (see below), whose sum is σ = 133937670. Its totient is φ = 35716704.

The previous prime is 71433413. The next prime is 71433437. The reversal of 71433416 is 61433417.

It can be written as a sum of positive squares in only one way, i.e., 68724100 + 2709316 = 8290^2 + 1646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (71433413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4464581 + ... + 4464596.

Almost surely, 2^71433416 is an apocalyptic number.

It is an amenable number.

71433416 is a deficient number, since it is larger than the sum of its proper divisors (62504254).

71433416 is a wasteful number, since it uses less digits than its factorization.

71433416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8929183 (or 8929179 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 71433416 is about 8451.8291511365. The cubic root of 71433416 is about 414.9226468302.

Subtracting from 71433416 its reverse (61433417), we obtain a palindrome (9999999).

The spelling of 71433416 in words is "seventy-one million, four hundred thirty-three thousand, four hundred sixteen".