64467653 has 4 divisors (see below), whose sum is σ = 66210060. Its totient is φ = 62725248.

The previous prime is 64467647. The next prime is 64467673. The reversal of 64467653 is 35676446.

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 59706529 + 4761124 = 7727^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 64467653 - 2¹⁰ = 64466629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64467653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64467673) 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, 871148 + ... + 871221.

It is an arithmetic number, because the mean of its divisors is an integer number (16552515).

Almost surely, 2^64467653 is an apocalyptic number.

It is an amenable number.

64467653 is a deficient number, since it is larger than the sum of its proper divisors (1742407).

64467653 is a wasteful number, since it uses less digits than its factorization.

64467653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742406.

The product of its digits is 362880, while the sum is 41.

The square root of 64467653 is about 8029.1751132978. The cubic root of 64467653 is about 400.9719136304.

The spelling of 64467653 in words is "sixty-four million, four hundred sixty-seven thousand, six hundred fifty-three".