64968403 has 2 divisors, whose sum is σ = 64968404. Its totient is φ = 64968402.

The previous prime is 64968389. The next prime is 64968413. The reversal of 64968403 is 30486946.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64968403 is a prime.

It is not a weakly prime, because it can be changed into another prime (64968413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32484201 + 32484202.

It is an arithmetic number, because the mean of its divisors is an integer number (32484202).

Almost surely, 2^64968403 is an apocalyptic number.

64968403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64968403 is an equidigital number, since it uses as much as digits as its factorization.

64968403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 64968403 is about 8060.2979473466. The cubic root of 64968403 is about 402.0074151087.

The spelling of 64968403 in words is "sixty-four million, nine hundred sixty-eight thousand, four hundred three".