64871461 has 4 divisors (see below), whose sum is σ = 65105932. Its totient is φ = 64636992.

The previous prime is 64871447. The next prime is 64871467. The reversal of 64871461 is 16417846.

It is a happy number.

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 21390625 + 43480836 = 4625^2 + 6594^2 .

It is a cyclic number.

It is not a de Polignac number, because 64871461 - 2⁷ = 64871333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64871461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64871467) 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, 116820 + ... + 117373.

It is an arithmetic number, because the mean of its divisors is an integer number (16276483).

Almost surely, 2^64871461 is an apocalyptic number.

It is an amenable number.

64871461 is a deficient number, since it is larger than the sum of its proper divisors (234471).

64871461 is a wasteful number, since it uses less digits than its factorization.

64871461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234470.

The product of its digits is 32256, while the sum is 37.

The square root of 64871461 is about 8054.2821529917. The cubic root of 64871461 is about 401.8073650294.

The spelling of 64871461 in words is "sixty-four million, eight hundred seventy-one thousand, four hundred sixty-one".