65209801 has 8 divisors (see below), whose sum is σ = 67257344. Its totient is φ = 63186480.

The previous prime is 65209789. The next prime is 65209813. The reversal of 65209801 is 10890256.

65209801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65209789) and next prime (65209813).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65209801 - 2¹⁵ = 65177033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65209831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510 + ... + 11431.

It is an arithmetic number, because the mean of its divisors is an integer number (8407168).

Almost surely, 2^65209801 is an apocalyptic number.

It is an amenable number.

65209801 is a deficient number, since it is larger than the sum of its proper divisors (2047543).

65209801 is a wasteful number, since it uses less digits than its factorization.

65209801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12111.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 65209801 is about 8075.2585717115. The cubic root of 65209801 is about 402.5047021813.

The spelling of 65209801 in words is "sixty-five million, two hundred nine thousand, eight hundred one".