80436737 has 2 divisors, whose sum is σ = 80436738. Its totient is φ = 80436736.

The previous prime is 80436721. The next prime is 80436743. The reversal of 80436737 is 73763408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80263681 + 173056 = 8959^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 80436737 - 2⁴ = 80436721 is a prime.

It is a super-3 number, since 3×80436737³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80436737.

It is not a weakly prime, because it can be changed into another prime (80436757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40218368 + 40218369.

It is an arithmetic number, because the mean of its divisors is an integer number (40218369).

Almost surely, 2^80436737 is an apocalyptic number.

It is an amenable number.

80436737 is a deficient number, since it is larger than the sum of its proper divisors (1).

80436737 is an equidigital number, since it uses as much as digits as its factorization.

80436737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 80436737 is about 8968.6530203816. The cubic root of 80436737 is about 431.6696165793.

The spelling of 80436737 in words is "eighty million, four hundred thirty-six thousand, seven hundred thirty-seven".