72036737 has 2 divisors, whose sum is σ = 72036738. Its totient is φ = 72036736.

The previous prime is 72036721. The next prime is 72036821. The reversal of 72036737 is 73763027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45576001 + 26460736 = 6751^2 + 5144^2 .

It is a cyclic number.

It is not a de Polignac number, because 72036737 - 2⁴ = 72036721 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72036697 and 72036706.

It is not a weakly prime, because it can be changed into another prime (72036707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36018368 + 36018369.

It is an arithmetic number, because the mean of its divisors is an integer number (36018369).

Almost surely, 2^72036737 is an apocalyptic number.

It is an amenable number.

72036737 is a deficient number, since it is larger than the sum of its proper divisors (1).

72036737 is an equidigital number, since it uses as much as digits as its factorization.

72036737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 35.

The square root of 72036737 is about 8487.4458466608. The cubic root of 72036737 is about 416.0875081718.

The spelling of 72036737 in words is "seventy-two million, thirty-six thousand, seven hundred thirty-seven".