64303645 has 16 divisors (see below), whose sum is σ = 88433280. Its totient is φ = 43971264.

The previous prime is 64303633. The next prime is 64303691. The reversal of 64303645 is 54630346.

It is a cyclic number.

It is not a de Polignac number, because 64303645 - 2¹⁹ = 63779357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11254 + ... + 15976.

It is an arithmetic number, because the mean of its divisors is an integer number (5527080).

Almost surely, 2^64303645 is an apocalyptic number.

It is an amenable number.

64303645 is a deficient number, since it is larger than the sum of its proper divisors (24129635).

64303645 is a wasteful number, since it uses less digits than its factorization.

64303645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124.

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

The square root of 64303645 is about 8018.9553559052. The cubic root of 64303645 is about 400.6315959415.

The spelling of 64303645 in words is "sixty-four million, three hundred three thousand, six hundred forty-five".