71832737 has 2 divisors, whose sum is σ = 71832738. Its totient is φ = 71832736.

The previous prime is 71832731. The next prime is 71832743. The reversal of 71832737 is 73723817.

It is a balanced prime because it is at equal distance from previous prime (71832731) and next prime (71832743).

It can be written as a sum of positive squares in only one way, i.e., 41977441 + 29855296 = 6479^2 + 5464^2 .

It is an emirp because it is prime and its reverse (73723817) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71832737 is a prime.

It is a super-2 number, since 2×71832737² = 10319884209822338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71832737.

It is not a weakly prime, because it can be changed into another prime (71832731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35916368 + 35916369.

It is an arithmetic number, because the mean of its divisors is an integer number (35916369).

Almost surely, 2^71832737 is an apocalyptic number.

It is an amenable number.

71832737 is a deficient number, since it is larger than the sum of its proper divisors (1).

71832737 is an equidigital number, since it uses as much as digits as its factorization.

71832737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 38.

The square root of 71832737 is about 8475.4195766345. The cubic root of 71832737 is about 415.6943656966.

The spelling of 71832737 in words is "seventy-one million, eight hundred thirty-two thousand, seven hundred thirty-seven".