10999601 has 2 divisors, whose sum is σ = 10999602. Its totient is φ = 10999600.

The previous prime is 10999559. The next prime is 10999621. The reversal of 10999601 is 10699901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 3519376 = 2735^2 + 1876^2 .

It is an emirp because it is prime and its reverse (10699901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10999601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10999621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499800 + 5499801.

It is an arithmetic number, because the mean of its divisors is an integer number (5499801).

Almost surely, 2^10999601 is an apocalyptic number.

It is an amenable number.

10999601 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999601 is an equidigital number, since it uses as much as digits as its factorization.

10999601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 10999601 is about 3316.5646382967. The cubic root of 10999601 is about 222.3953200303.

The spelling of 10999601 in words is "ten million, nine hundred ninety-nine thousand, six hundred one".