64323403 has 2 divisors, whose sum is σ = 64323404. Its totient is φ = 64323402.

The previous prime is 64323361. The next prime is 64323409. The reversal of 64323403 is 30432346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64323403 - 2¹³ = 64315211 is a prime.

It is not a weakly prime, because it can be changed into another prime (64323409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32161701 + 32161702.

It is an arithmetic number, because the mean of its divisors is an integer number (32161702).

Almost surely, 2^64323403 is an apocalyptic number.

64323403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64323403 is an equidigital number, since it uses as much as digits as its factorization.

64323403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 64323403 is about 8020.1872172662. The cubic root of 64323403 is about 400.6726245565.

Adding to 64323403 its reverse (30432346), we get a palindrome (94755749).

The spelling of 64323403 in words is "sixty-four million, three hundred twenty-three thousand, four hundred three".