64107761 has 2 divisors, whose sum is σ = 64107762. Its totient is φ = 64107760.

The previous prime is 64107709. The next prime is 64107763. The reversal of 64107761 is 16770146.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52649536 + 11458225 = 7256^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 64107761 - 2¹⁰ = 64106737 is a prime.

Together with 64107763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64107763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32053880 + 32053881.

It is an arithmetic number, because the mean of its divisors is an integer number (32053881).

Almost surely, 2^64107761 is an apocalyptic number.

It is an amenable number.

64107761 is a deficient number, since it is larger than the sum of its proper divisors (1).

64107761 is an equidigital number, since it uses as much as digits as its factorization.

64107761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 64107761 is about 8006.7322298176. The cubic root of 64107761 is about 400.2243761981.

The spelling of 64107761 in words is "sixty-four million, one hundred seven thousand, seven hundred sixty-one".