64453473 has 24 divisors (see below), whose sum is σ = 108576000. Its totient is φ = 36828792.

The previous prime is 64453471. The next prime is 64453489. The reversal of 64453473 is 37435446.

It is a happy number.

64453473 is a `hidden beast` number, since 644 + 5 + 3 + 4 + 7 + 3 = 666.

It is not a de Polignac number, because 64453473 - 2¹ = 64453471 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64453471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7353 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (4524000).

Almost surely, 2^64453473 is an apocalyptic number.

64453473 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

64453473 is a deficient number, since it is larger than the sum of its proper divisors (44122527).

64453473 is a wasteful number, since it uses less digits than its factorization.

64453473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20906 (or 20889 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 64453473 is about 8028.2920350471. The cubic root of 64453473 is about 400.9425128462.

The spelling of 64453473 in words is "sixty-four million, four hundred fifty-three thousand, four hundred seventy-three".