63858949 has 16 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 49523760.

The previous prime is 63858941. The next prime is 63858961. The reversal of 63858949 is 94985836.

It is a happy number.

63858949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63858949 - 2³ = 63858941 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63858896 and 63858905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63858941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15312 + ... + 19030.

It is an arithmetic number, because the mean of its divisors is an integer number (4999680).

Almost surely, 2^63858949 is an apocalyptic number.

It is an amenable number.

63858949 is a deficient number, since it is larger than the sum of its proper divisors (16135931).

63858949 is a wasteful number, since it uses less digits than its factorization.

63858949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960.

The product of its digits is 1866240, while the sum is 52.

The square root of 63858949 is about 7991.1794498685. The cubic root of 63858949 is about 399.7059276065.

The spelling of 63858949 in words is "sixty-three million, eight hundred fifty-eight thousand, nine hundred forty-nine".