64567403 has 2 divisors, whose sum is σ = 64567404. Its totient is φ = 64567402.

The previous prime is 64567379. The next prime is 64567421. The reversal of 64567403 is 30476546.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64567403 is a prime.

It is not a weakly prime, because it can be changed into another prime (64567423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32283701 + 32283702.

It is an arithmetic number, because the mean of its divisors is an integer number (32283702).

Almost surely, 2^64567403 is an apocalyptic number.

64567403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64567403 is an equidigital number, since it uses as much as digits as its factorization.

64567403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 64567403 is about 8035.3844338650. The cubic root of 64567403 is about 401.1786133488.

The spelling of 64567403 in words is "sixty-four million, five hundred sixty-seven thousand, four hundred three".