64473413 has 4 divisors (see below), whose sum is σ = 64797600. Its totient is φ = 64149228.

The previous prime is 64473407. The next prime is 64473419. The reversal of 64473413 is 31437446.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31437446 = 2 ⋅15718723.

It is an interprime number because it is at equal distance from previous prime (64473407) and next prime (64473419).

It is a cyclic number.

It is not a de Polignac number, because 64473413 - 2¹⁶ = 64407877 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 64473413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64473419) 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, 161795 + ... + 162192.

It is an arithmetic number, because the mean of its divisors is an integer number (16199400).

Almost surely, 2^64473413 is an apocalyptic number.

It is an amenable number.

64473413 is a deficient number, since it is larger than the sum of its proper divisors (324187).

64473413 is a wasteful number, since it uses less digits than its factorization.

64473413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324186.

The product of its digits is 24192, while the sum is 32.

The square root of 64473413 is about 8029.5337971765. The cubic root of 64473413 is about 400.9838551718.

The spelling of 64473413 in words is "sixty-four million, four hundred seventy-three thousand, four hundred thirteen".