64432084 has 36 divisors (see below), whose sum is σ = 119466900. Its totient is φ = 30366336.

The previous prime is 64432079. The next prime is 64432087. The reversal of 64432084 is 48023446.

It can be written as a sum of positive squares in 2 ways, for example, as 22467600 + 41964484 = 4740^2 + 6478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64432087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723912 + ... + 724000.

It is an arithmetic number, because the mean of its divisors is an integer number (3318525).

Almost surely, 2^64432084 is an apocalyptic number.

It is an amenable number.

64432084 is a deficient number, since it is larger than the sum of its proper divisors (55034816).

64432084 is a wasteful number, since it uses less digits than its factorization.

64432084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 64432084 is about 8026.9598229965. The cubic root of 64432084 is about 400.8981567766.

The spelling of 64432084 in words is "sixty-four million, four hundred thirty-two thousand, eighty-four".