64800403 has 2 divisors, whose sum is σ = 64800404. Its totient is φ = 64800402.

The previous prime is 64800389. The next prime is 64800427. The reversal of 64800403 is 30400846.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64800403 is a prime.

It is not a weakly prime, because it can be changed into another prime (64800433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32400201 + 32400202.

It is an arithmetic number, because the mean of its divisors is an integer number (32400202).

Almost surely, 2^64800403 is an apocalyptic number.

64800403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64800403 is an equidigital number, since it uses as much as digits as its factorization.

64800403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 64800403 is about 8049.8697504991. The cubic root of 64800403 is about 401.6606027065.

The spelling of 64800403 in words is "sixty-four million, eight hundred thousand, four hundred three".