64044737 has 2 divisors, whose sum is σ = 64044738. Its totient is φ = 64044736.

The previous prime is 64044727. The next prime is 64044751. The reversal of 64044737 is 73744046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45373696 + 18671041 = 6736^2 + 4321^2 .

It is a cyclic number.

It is not a de Polignac number, because 64044737 - 2¹⁴ = 64028353 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64044697 and 64044706.

It is not a weakly prime, because it can be changed into another prime (64044727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32022368 + 32022369.

It is an arithmetic number, because the mean of its divisors is an integer number (32022369).

Almost surely, 2^64044737 is an apocalyptic number.

It is an amenable number.

64044737 is a deficient number, since it is larger than the sum of its proper divisors (1).

64044737 is an equidigital number, since it uses as much as digits as its factorization.

64044737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 64044737 is about 8002.7955740479. The cubic root of 64044737 is about 400.0931803752.

The spelling of 64044737 in words is "sixty-four million, forty-four thousand, seven hundred thirty-seven".