13650997 has 2 divisors, whose sum is σ = 13650998. Its totient is φ = 13650996.

The previous prime is 13650979. The next prime is 13651003. The reversal of 13650997 is 79905631.

Together with previous prime (13650979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6922161 + 6728836 = 2631^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 13650997 - 2¹⁹ = 13126709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13650977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6825498 + 6825499.

It is an arithmetic number, because the mean of its divisors is an integer number (6825499).

Almost surely, 2^13650997 is an apocalyptic number.

It is an amenable number.

13650997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13650997 is an equidigital number, since it uses as much as digits as its factorization.

13650997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 13650997 is about 3694.7255649101. The cubic root of 13650997 is about 238.9946194875.

The spelling of 13650997 in words is "thirteen million, six hundred fifty thousand, nine hundred ninety-seven".