90968201 has 2 divisors, whose sum is σ = 90968202. Its totient is φ = 90968200.

The previous prime is 90968179. The next prime is 90968203. The reversal of 90968201 is 10286909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 39702601 = 7160^2 + 6301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90968201 is a prime.

Together with 90968203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90968203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45484100 + 45484101.

It is an arithmetic number, because the mean of its divisors is an integer number (45484101).

Almost surely, 2^90968201 is an apocalyptic number.

It is an amenable number.

90968201 is a deficient number, since it is larger than the sum of its proper divisors (1).

90968201 is an equidigital number, since it uses as much as digits as its factorization.

90968201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 90968201 is about 9537.7251480633. The cubic root of 90968201 is about 449.7417464677.

The spelling of 90968201 in words is "ninety million, nine hundred sixty-eight thousand, two hundred one".