965828609 has 2 divisors, whose sum is σ = 965828610. Its totient is φ = 965828608.

The previous prime is 965828569. The next prime is 965828621. The reversal of 965828609 is 906828569.

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., 702091009 + 263737600 = 26497^2 + 16240^2 .

It is a cyclic number.

It is not a de Polignac number, because 965828609 - 2²⁸ = 697393153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (965828659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482914304 + 482914305.

It is an arithmetic number, because the mean of its divisors is an integer number (482914305).

Almost surely, 2^965828609 is an apocalyptic number.

It is an amenable number.

965828609 is a deficient number, since it is larger than the sum of its proper divisors (1).

965828609 is an equidigital number, since it uses as much as digits as its factorization.

965828609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 965828609 is about 31077.7832060139. The cubic root of 965828609 is about 988.4772730673.

The spelling of 965828609 in words is "nine hundred sixty-five million, eight hundred twenty-eight thousand, six hundred nine".