71332738 has 4 divisors (see below), whose sum is σ = 106999110. Its totient is φ = 35666368.

The previous prime is 71332609. The next prime is 71332739. The reversal of 71332738 is 83723317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 149769 = 8437^2 + 387^2 .

It is not an unprimeable number, because it can be changed into a prime (71332739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17833183 + ... + 17833186.

Almost surely, 2^71332738 is an apocalyptic number.

71332738 is a deficient number, since it is larger than the sum of its proper divisors (35666372).

71332738 is a wasteful number, since it uses less digits than its factorization.

71332738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35666371.

The product of its digits is 21168, while the sum is 34.

The square root of 71332738 is about 8445.8710622410. The cubic root of 71332738 is about 414.7276250176.

The spelling of 71332738 in words is "seventy-one million, three hundred thirty-two thousand, seven hundred thirty-eight".