65479457 has 4 divisors (see below), whose sum is σ = 65541780. Its totient is φ = 65417136.

The previous prime is 65479441. The next prime is 65479481. The reversal of 65479457 is 75497456.

65479457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17648401 + 47831056 = 4201^2 + 6916^2 .

It is a cyclic number.

It is not a de Polignac number, because 65479457 - 2⁴ = 65479441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65479487) 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 3 ways as a sum of consecutive naturals, for example, 29558 + ... + 31695.

It is an arithmetic number, because the mean of its divisors is an integer number (16385445).

Almost surely, 2^65479457 is an apocalyptic number.

It is an amenable number.

65479457 is a deficient number, since it is larger than the sum of its proper divisors (62323).

65479457 is a wasteful number, since it uses less digits than its factorization.

65479457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62322.

The product of its digits is 1058400, while the sum is 47.

The square root of 65479457 is about 8091.9377778132. The cubic root of 65479457 is about 403.0587525455.

The spelling of 65479457 in words is "sixty-five million, four hundred seventy-nine thousand, four hundred fifty-seven".