11897803 has 2 divisors, whose sum is σ = 11897804. Its totient is φ = 11897802.

The previous prime is 11897791. The next prime is 11897827. The reversal of 11897803 is 30879811.

It is a weak prime.

It is an emirp because it is prime and its reverse (30879811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11897803 - 2⁵ = 11897771 is a prime.

It is not a weakly prime, because it can be changed into another prime (11897833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5948901 + 5948902.

It is an arithmetic number, because the mean of its divisors is an integer number (5948902).

Almost surely, 2^11897803 is an apocalyptic number.

11897803 is a deficient number, since it is larger than the sum of its proper divisors (1).

11897803 is an equidigital number, since it uses as much as digits as its factorization.

11897803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 11897803 is about 3449.3192081917. The cubic root of 11897803 is about 228.2910704927.

The spelling of 11897803 in words is "eleven million, eight hundred ninety-seven thousand, eight hundred three".