65412761 has 4 divisors (see below), whose sum is σ = 66934032. Its totient is φ = 63891492.

The previous prime is 65412691. The next prime is 65412773. The reversal of 65412761 is 16721456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65412761 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65412791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760571 + ... + 760656.

It is an arithmetic number, because the mean of its divisors is an integer number (16733508).

Almost surely, 2^65412761 is an apocalyptic number.

It is an amenable number.

65412761 is a deficient number, since it is larger than the sum of its proper divisors (1521271).

65412761 is a wasteful number, since it uses less digits than its factorization.

65412761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521270.

The product of its digits is 10080, while the sum is 32.

The square root of 65412761 is about 8087.8155888967. The cubic root of 65412761 is about 402.9218569946.

The spelling of 65412761 in words is "sixty-five million, four hundred twelve thousand, seven hundred sixty-one".