64500345 has 96 divisors (see below), whose sum is σ = 145017600. Its totient is φ = 25754112.

The previous prime is 64500341. The next prime is 64500353. The reversal of 64500345 is 54300546.

It is not a de Polignac number, because 64500345 - 2² = 64500341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64500341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77391 + ... + 78219.

It is an arithmetic number, because the mean of its divisors is an integer number (1510600).

Almost surely, 2^64500345 is an apocalyptic number.

64500345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64500345 is an abundant number, since it is smaller than the sum of its proper divisors (80517255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64500345 is a wasteful number, since it uses less digits than its factorization.

64500345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 64500345 is about 8031.2106808376. The cubic root of 64500345 is about 401.0396807353.

The spelling of 64500345 in words is "sixty-four million, five hundred thousand, three hundred forty-five".