6450064 has 20 divisors (see below), whose sum is σ = 12928860. Its totient is φ = 3113600.

The previous prime is 6450049. The next prime is 6450083. The reversal of 6450064 is 4600546.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4376464 + 2073600 = 2092^2 + 1440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487 + ... + 7414.

It is an arithmetic number, because the mean of its divisors is an integer number (646443).

Almost surely, 2^6450064 is an apocalyptic number.

It is an amenable number.

6450064 is an abundant number, since it is smaller than the sum of its proper divisors (6478796).

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

6450064 is a wasteful number, since it uses less digits than its factorization.

6450064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13938 (or 13932 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6450064 is about 2539.6976197965. The cubic root of 6450064 is about 186.1464141804.

The spelling of 6450064 in words is "six million, four hundred fifty thousand, sixty-four".