65718403 has 2 divisors, whose sum is σ = 65718404. Its totient is φ = 65718402.

The previous prime is 65718391. The next prime is 65718407. The reversal of 65718403 is 30481756.

65718403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65718403 is a prime.

It is not a weakly prime, because it can be changed into another prime (65718407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32859201 + 32859202.

It is an arithmetic number, because the mean of its divisors is an integer number (32859202).

Almost surely, 2^65718403 is an apocalyptic number.

65718403 is a deficient number, since it is larger than the sum of its proper divisors (1).

65718403 is an equidigital number, since it uses as much as digits as its factorization.

65718403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 65718403 is about 8106.6887814940. The cubic root of 65718403 is about 403.5484346953.

The spelling of 65718403 in words is "sixty-five million, seven hundred eighteen thousand, four hundred three".