64238063 has 4 divisors (see below), whose sum is σ = 65291208. Its totient is φ = 63184920.

The previous prime is 64238051. The next prime is 64238081. The reversal of 64238063 is 36083246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36083246 = 2 ⋅18041623.

It is a cyclic number.

It is not a de Polignac number, because 64238063 - 2⁴ = 64238047 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 (64238003) 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, 526481 + ... + 526602.

It is an arithmetic number, because the mean of its divisors is an integer number (16322802).

Almost surely, 2^64238063 is an apocalyptic number.

64238063 is a deficient number, since it is larger than the sum of its proper divisors (1053145).

64238063 is a wasteful number, since it uses less digits than its factorization.

64238063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053144.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 64238063 is about 8014.8651267504. The cubic root of 64238063 is about 400.4953508988.

The spelling of 64238063 in words is "sixty-four million, two hundred thirty-eight thousand, sixty-three".