64306453 has 4 divisors (see below), whose sum is σ = 64643328. Its totient is φ = 63969580.

The previous prime is 64306439. The next prime is 64306471. The reversal of 64306453 is 35460346.

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.

It is a cyclic number.

It is not a de Polignac number, because 64306453 - 2⁵ = 64306421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64306433) 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, 168151 + ... + 168532.

It is an arithmetic number, because the mean of its divisors is an integer number (16160832).

Almost surely, 2^64306453 is an apocalyptic number.

It is an amenable number.

64306453 is a deficient number, since it is larger than the sum of its proper divisors (336875).

64306453 is a wasteful number, since it uses less digits than its factorization.

64306453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336874.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 64306453 is about 8019.1304391436. The cubic root of 64306453 is about 400.6374274261.

Adding to 64306453 its reverse (35460346), we get a palindrome (99766799).

The spelling of 64306453 in words is "sixty-four million, three hundred six thousand, four hundred fifty-three".