63485819 has 6 divisors (see below), whose sum is σ = 66366636. Its totient is φ = 60725060.

The previous prime is 63485813. The next prime is 63485827. The reversal of 63485819 is 91858436.

It is not a de Polignac number, because 63485819 - 2⁸ = 63485563 is a prime.

It is a super-2 number, since 2×63485819² = 8060898428201522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63485819.

It is not an unprimeable number, because it can be changed into a prime (63485813) 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 5 ways as a sum of consecutive naturals, for example, 59477 + ... + 60534.

It is an arithmetic number, because the mean of its divisors is an integer number (11061106).

Almost surely, 2^63485819 is an apocalyptic number.

63485819 is a deficient number, since it is larger than the sum of its proper divisors (2880817).

63485819 is a wasteful number, since it uses less digits than its factorization.

63485819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120057 (or 120034 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 63485819 is about 7967.7988804939. The cubic root of 63485819 is about 398.9259079807.

It can be divided in two parts, 6348 and 5819, that added together give a cube (12167 = 23³).

The spelling of 63485819 in words is "sixty-three million, four hundred eighty-five thousand, eight hundred nineteen".