80187617 has 2 divisors, whose sum is σ = 80187618. Its totient is φ = 80187616.

The previous prime is 80187587. The next prime is 80187629. The reversal of 80187617 is 71678108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67256401 + 12931216 = 8201^2 + 3596^2 .

It is a cyclic number.

It is not a de Polignac number, because 80187617 - 2⁶ = 80187553 is a prime.

It is not a weakly prime, because it can be changed into another prime (80187517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40093808 + 40093809.

It is an arithmetic number, because the mean of its divisors is an integer number (40093809).

Almost surely, 2^80187617 is an apocalyptic number.

It is an amenable number.

80187617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80187617 is an equidigital number, since it uses as much as digits as its factorization.

80187617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 80187617 is about 8954.7538771314. The cubic root of 80187617 is about 431.2235155058.

The spelling of 80187617 in words is "eighty million, one hundred eighty-seven thousand, six hundred seventeen".