64305739 has 2 divisors, whose sum is σ = 64305740. Its totient is φ = 64305738.

The previous prime is 64305733. The next prime is 64305751. The reversal of 64305739 is 93750346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64305739 - 2¹¹ = 64303691 is a prime.

It is a super-2 number, since 2×64305739² = 8270456136672242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64305698 and 64305707.

It is not a weakly prime, because it can be changed into another prime (64305733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152869 + 32152870.

It is an arithmetic number, because the mean of its divisors is an integer number (32152870).

Almost surely, 2^64305739 is an apocalyptic number.

64305739 is a deficient number, since it is larger than the sum of its proper divisors (1).

64305739 is an equidigital number, since it uses as much as digits as its factorization.

64305739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 64305739 is about 8019.0859204775. The cubic root of 64305739 is about 400.6359446502.

The spelling of 64305739 in words is "sixty-four million, three hundred five thousand, seven hundred thirty-nine".