65436461 has 4 divisors (see below), whose sum is σ = 67205052. Its totient is φ = 63667872.

The previous prime is 65436439. The next prime is 65436563. The reversal of 65436461 is 16463456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31866025 + 33570436 = 5645^2 + 5794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65436461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65436401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884240 + ... + 884313.

It is an arithmetic number, because the mean of its divisors is an integer number (16801263).

Almost surely, 2^65436461 is an apocalyptic number.

It is an amenable number.

65436461 is a deficient number, since it is larger than the sum of its proper divisors (1768591).

65436461 is a wasteful number, since it uses less digits than its factorization.

65436461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768590.

The product of its digits is 51840, while the sum is 35.

The square root of 65436461 is about 8089.2806231457. The cubic root of 65436461 is about 402.9705126128.

The spelling of 65436461 in words is "sixty-five million, four hundred thirty-six thousand, four hundred sixty-one".