64002427 has 4 divisors (see below), whose sum is σ = 64469736. Its totient is φ = 63535120.

The previous prime is 64002413. The next prime is 64002451. The reversal of 64002427 is 72420046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72420046 = 2 ⋅36210023.

It is not a de Polignac number, because 64002427 - 2⁷ = 64002299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64002457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233449 + ... + 233722.

It is an arithmetic number, because the mean of its divisors is an integer number (16117434).

Almost surely, 2^64002427 is an apocalyptic number.

64002427 is a deficient number, since it is larger than the sum of its proper divisors (467309).

64002427 is a wasteful number, since it uses less digits than its factorization.

64002427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467308.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 64002427 is about 8000.1516860620. The cubic root of 64002427 is about 400.0050561861.

The spelling of 64002427 in words is "sixty-four million, two thousand, four hundred twenty-seven".