63069813 has 32 divisors (see below), whose sum is σ = 99475200. Its totient is φ = 39356928.

The previous prime is 63069709. The next prime is 63069823. The reversal of 63069813 is 31896036.

It is a happy number.

63069813 is a `hidden beast` number, since 630 + 6 + 9 + 8 + 13 = 666.

It is not a de Polignac number, because 63069813 - 2⁹ = 63069301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63069823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143448 + ... + 143886.

It is an arithmetic number, because the mean of its divisors is an integer number (3108600).

Almost surely, 2^63069813 is an apocalyptic number.

It is an amenable number.

63069813 is a deficient number, since it is larger than the sum of its proper divisors (36405387).

63069813 is a wasteful number, since it uses less digits than its factorization.

63069813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 63069813 is about 7941.6505211448. The cubic root of 63069813 is about 398.0526453260.

The spelling of 63069813 in words is "sixty-three million, sixty-nine thousand, eight hundred thirteen".