63492865 has 4 divisors (see below), whose sum is σ = 76191444. Its totient is φ = 50794288.

The previous prime is 63492859. The next prime is 63492883. The reversal of 63492865 is 56829436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6927424 + 56565441 = 2632^2 + 7521^2 .

It is a cyclic number.

It is not a de Polignac number, because 63492865 - 2⁵ = 63492833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6349282 + ... + 6349291.

It is an arithmetic number, because the mean of its divisors is an integer number (19047861).

Almost surely, 2^63492865 is an apocalyptic number.

It is an amenable number.

63492865 is a deficient number, since it is larger than the sum of its proper divisors (12698579).

63492865 is a wasteful number, since it uses less digits than its factorization.

63492865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12698578.

The product of its digits is 311040, while the sum is 43.

The square root of 63492865 is about 7968.2410229611. The cubic root of 63492865 is about 398.9406657540.

The spelling of 63492865 in words is "sixty-three million, four hundred ninety-two thousand, eight hundred sixty-five".