65650769 has 2 divisors, whose sum is σ = 65650770. Its totient is φ = 65650768.

The previous prime is 65650733. The next prime is 65650801. The reversal of 65650769 is 96705656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63361600 + 2289169 = 7960^2 + 1513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65650769 is a prime.

It is a super-2 number, since 2×65650769² = 8620046940582722, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65650069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32825384 + 32825385.

It is an arithmetic number, because the mean of its divisors is an integer number (32825385).

Almost surely, 2^65650769 is an apocalyptic number.

It is an amenable number.

65650769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65650769 is an equidigital number, since it uses as much as digits as its factorization.

65650769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 65650769 is about 8102.5162141152. The cubic root of 65650769 is about 403.4099500801.

The spelling of 65650769 in words is "sixty-five million, six hundred fifty thousand, seven hundred sixty-nine".