64381463 has 4 divisors (see below), whose sum is σ = 64648848. Its totient is φ = 64114080.

The previous prime is 64381459. The next prime is 64381469. The reversal of 64381463 is 36418346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36418346 = 2 ⋅18209173.

It is a cyclic number.

It is not a de Polignac number, because 64381463 - 2² = 64381459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64381469) 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, 133331 + ... + 133812.

It is an arithmetic number, because the mean of its divisors is an integer number (16162212).

Almost surely, 2^64381463 is an apocalyptic number.

64381463 is a deficient number, since it is larger than the sum of its proper divisors (267385).

64381463 is a wasteful number, since it uses less digits than its factorization.

64381463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267384.

The product of its digits is 41472, while the sum is 35.

The square root of 64381463 is about 8023.8060170969. The cubic root of 64381463 is about 400.7931408628.

The spelling of 64381463 in words is "sixty-four million, three hundred eighty-one thousand, four hundred sixty-three".