64432027 has 4 divisors (see below), whose sum is σ = 70289496. Its totient is φ = 58574560.

The previous prime is 64432019. The next prime is 64432061. The reversal of 64432027 is 72023446.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64432027 - 2³ = 64432019 is a prime.

It is a super-2 number, since 2×64432027² = 8302972206657458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64431986 and 64432004.

It is not an unprimeable number, because it can be changed into a prime (64432007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2928718 + ... + 2928739.

It is an arithmetic number, because the mean of its divisors is an integer number (17572374).

Almost surely, 2^64432027 is an apocalyptic number.

64432027 is a deficient number, since it is larger than the sum of its proper divisors (5857469).

64432027 is a wasteful number, since it uses less digits than its factorization.

64432027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857468.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 64432027 is about 8026.9562724609. The cubic root of 64432027 is about 400.8980385580.

The spelling of 64432027 in words is "sixty-four million, four hundred thirty-two thousand, twenty-seven".