65870879 has 2 divisors, whose sum is σ = 65870880. Its totient is φ = 65870878.

The previous prime is 65870863. The next prime is 65870927. The reversal of 65870879 is 97807856.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65870879 - 2⁴ = 65870863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65870809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32935439 + 32935440.

It is an arithmetic number, because the mean of its divisors is an integer number (32935440).

Almost surely, 2^65870879 is an apocalyptic number.

65870879 is a deficient number, since it is larger than the sum of its proper divisors (1).

65870879 is an equidigital number, since it uses as much as digits as its factorization.

65870879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 65870879 is about 8116.0876658646. The cubic root of 65870879 is about 403.8602901388.

The spelling of 65870879 in words is "sixty-five million, eight hundred seventy thousand, eight hundred seventy-nine".