65887001 has 2 divisors, whose sum is σ = 65887002. Its totient is φ = 65887000.

The previous prime is 65886991. The next prime is 65887007. The reversal of 65887001 is 10078856.

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., 33408400 + 32478601 = 5780^2 + 5699^2 .

It is a cyclic number.

It is not a de Polignac number, because 65887001 - 2¹⁴ = 65870617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65887007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32943500 + 32943501.

It is an arithmetic number, because the mean of its divisors is an integer number (32943501).

Almost surely, 2^65887001 is an apocalyptic number.

It is an amenable number.

65887001 is a deficient number, since it is larger than the sum of its proper divisors (1).

65887001 is an equidigital number, since it uses as much as digits as its factorization.

65887001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 65887001 is about 8117.0808176339. The cubic root of 65887001 is about 403.8932359290.

The spelling of 65887001 in words is "sixty-five million, eight hundred eighty-seven thousand, one".