64473453 has 12 divisors (see below), whose sum is σ = 101594688. Its totient is φ = 39074760.

The previous prime is 64473419. The next prime is 64473457. The reversal of 64473453 is 35437446.

It is a happy number.

64473453 is a `hidden beast` number, since 644 + 7 + 3 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 64473453 - 2⁶ = 64473389 is a prime.

It is a super-2 number, since 2×64473453² = 8313652283486418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64473457) 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 11 ways as a sum of consecutive naturals, for example, 325525 + ... + 325722.

It is an arithmetic number, because the mean of its divisors is an integer number (8466224).

Almost surely, 2^64473453 is an apocalyptic number.

It is an amenable number.

64473453 is a deficient number, since it is larger than the sum of its proper divisors (37121235).

64473453 is a wasteful number, since it uses less digits than its factorization.

64473453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651264 (or 651261 counting only the distinct ones).

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

The square root of 64473453 is about 8029.5362879808. The cubic root of 64473453 is about 400.9839380967.

The spelling of 64473453 in words is "sixty-four million, four hundred seventy-three thousand, four hundred fifty-three".