71432 has 8 divisors (see below), whose sum is σ = 133950. Its totient is φ = 35712.

The previous prime is 71429. The next prime is 71437. The reversal of 71432 is 23417.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70756 + 676 = 266^2 + 26^2 .

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

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 71432.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71432.

It is not an unprimeable number, because it can be changed into a prime (71437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4457 + ... + 4472.

2⁷¹⁴³² is an apocalyptic number.

It is an amenable number.

71432 is a deficient number, since it is larger than the sum of its proper divisors (62518).

71432 is a wasteful number, since it uses less digits than its factorization.

71432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8935 (or 8931 counting only the distinct ones).

The product of its digits is 168, while the sum is 17.

The square root of 71432 is about 267.2676561053. The cubic root of 71432 is about 41.4919905189.

Adding to 71432 its reverse (23417), we get a palindrome (94849).

The spelling of 71432 in words is "seventy-one thousand, four hundred thirty-two".