64620343 has 2 divisors, whose sum is σ = 64620344. Its totient is φ = 64620342.

The previous prime is 64620329. The next prime is 64620379. The reversal of 64620343 is 34302646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64620343 - 2¹³ = 64612151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64620313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32310171 + 32310172.

It is an arithmetic number, because the mean of its divisors is an integer number (32310172).

Almost surely, 2^64620343 is an apocalyptic number.

64620343 is a deficient number, since it is larger than the sum of its proper divisors (1).

64620343 is an equidigital number, since it uses as much as digits as its factorization.

64620343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 64620343 is about 8038.6779385668. The cubic root of 64620343 is about 401.2882279679.

Adding to 64620343 its reverse (34302646), we get a palindrome (98922989).

The spelling of 64620343 in words is "sixty-four million, six hundred twenty thousand, three hundred forty-three".