64066403 has 2 divisors, whose sum is σ = 64066404. Its totient is φ = 64066402.

The previous prime is 64066397. The next prime is 64066411. The reversal of 64066403 is 30466046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64066403 - 2¹⁸ = 63804259 is a prime.

It is not a weakly prime, because it can be changed into another prime (64066433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32033201 + 32033202.

It is an arithmetic number, because the mean of its divisors is an integer number (32033202).

Almost surely, 2^64066403 is an apocalyptic number.

64066403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64066403 is an equidigital number, since it uses as much as digits as its factorization.

64066403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 64066403 is about 8004.1491115546. The cubic root of 64066403 is about 400.1382917663.

The spelling of 64066403 in words is "sixty-four million, sixty-six thousand, four hundred three".