65339969 has 2 divisors, whose sum is σ = 65339970. Its totient is φ = 65339968.

The previous prime is 65339933. The next prime is 65340001. The reversal of 65339969 is 96993356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59089969 + 6250000 = 7687^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 65339969 - 2⁸ = 65339713 is a prime.

It is a super-2 number, since 2×65339969² = 8538623097841922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65339269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32669984 + 32669985.

It is an arithmetic number, because the mean of its divisors is an integer number (32669985).

Almost surely, 2^65339969 is an apocalyptic number.

It is an amenable number.

65339969 is a deficient number, since it is larger than the sum of its proper divisors (1).

65339969 is an equidigital number, since it uses as much as digits as its factorization.

65339969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 50.

The square root of 65339969 is about 8083.3142336544. The cubic root of 65339969 is about 402.7723429779.

The spelling of 65339969 in words is "sixty-five million, three hundred thirty-nine thousand, nine hundred sixty-nine".