71433361 has 4 divisors (see below), whose sum is σ = 72140724. Its totient is φ = 70726000.

The previous prime is 71433359. The next prime is 71433389. The reversal of 71433361 is 16333417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16333417 = 101 ⋅161717.

It can be written as a sum of positive squares in 2 ways, for example, as 41796225 + 29637136 = 6465^2 + 5444^2 .

It is a cyclic number.

It is not a de Polignac number, because 71433361 - 2¹ = 71433359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71433311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353530 + ... + 353731.

It is an arithmetic number, because the mean of its divisors is an integer number (18035181).

Almost surely, 2^71433361 is an apocalyptic number.

It is an amenable number.

71433361 is a deficient number, since it is larger than the sum of its proper divisors (707363).

71433361 is a wasteful number, since it uses less digits than its factorization.

71433361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707362.

The product of its digits is 4536, while the sum is 28.

The square root of 71433361 is about 8451.8258974023. The cubic root of 71433361 is about 414.9225403406.

Adding to 71433361 its reverse (16333417), we get a palindrome (87766778).

The spelling of 71433361 in words is "seventy-one million, four hundred thirty-three thousand, three hundred sixty-one".